GADZOOX NETWORKS INC
424B1, 1999-07-20
ELECTRONIC COMPONENTS & ACCESSORIES
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<PAGE>   1
                                                Filed Pursuant to Rule 424(b)(1)
                                                      Registration No. 333-78029


                                3,500,000 Shares
                                  gadzoox LOGO
                             GADZOOX NETWORKS, INC.

                                  Common Stock
                               ------------------

     Prior to this offering, there has been no public market for our common
stock. Our common stock has been approved for listing on The Nasdaq Stock
Market's National Market under the symbol "ZOOX."

     The underwriters have an option to purchase a maximum of 525,000 additional
shares to cover over-allotments of shares.

     INVESTING IN OUR COMMON STOCK INVOLVES RISKS. SEE "RISK FACTORS" ON PAGE 6.

<TABLE>
<CAPTION>
                                                                               UNDERWRITING
                                                                 PRICE TO     DISCOUNTS AND    PROCEEDS TO
                                                                  PUBLIC       COMMISSIONS       GADZOOX
                                                              --------------  --------------  --------------
<S>                                                           <C>             <C>             <C>
Per Share............................................         $21.00          $1.47           $19.53
Total................................................         $73,500,000     $5,145,000      $68,355,000
</TABLE>

     Delivery of the shares of common stock will be made on or about July 23,
1999.

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.

CREDIT SUISSE FIRST BOSTON

                    HAMBRECHT & QUIST

                                       MORGAN KEEGAN & COMPANY, INC.

                 The date of this prospectus is July 19, 1999.
<PAGE>   2

                               ------------------

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                   Page
                                   ----
<S>                                <C>
PROSPECTUS SUMMARY...............    3
RISK FACTORS.....................    6
SPECIAL NOTE REGARDING
  FORWARD-LOOKING
  STATEMENTS.....................   18
USE OF PROCEEDS..................   18
DIVIDEND POLICY..................   18
CAPITALIZATION...................   19
DILUTION.........................   20
SELECTED FINANCIAL DATA..........   21
MANAGEMENT'S DISCUSSION AND
  ANALYSIS OF FINANCIAL CONDITION
  AND RESULTS OF OPERATIONS......   22
BUSINESS.........................   36
</TABLE>

<TABLE>
<CAPTION>
                                   Page
                                   ----
<S>                                <C>
MANAGEMENT.......................   54
CERTAIN TRANSACTIONS.............   65
PRINCIPAL STOCKHOLDERS...........   70
DESCRIPTION OF CAPITAL STOCK.....   73
SHARES ELIGIBLE FOR
  FUTURE SALE....................   77
UNDERWRITING.....................   79
NOTICE TO CANADIAN RESIDENTS.....   81
LEGAL MATTERS....................   82
CHANGE IN INDEPENDENT
  ACCOUNTANTS....................   82
EXPERTS..........................   82
ADDITIONAL INFORMATION...........   83
INDEX TO FINANCIAL STATEMENTS....  F-1
</TABLE>

                               ------------------

     YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED IN THIS DOCUMENT OR TO
WHICH WE HAVE REFERRED YOU. WE HAVE NOT AUTHORIZED ANYONE TO PROVIDE YOU WITH
INFORMATION THAT IS DIFFERENT. THIS DOCUMENT MAY ONLY BE USED WHERE IT IS LEGAL
TO SELL THESE SECURITIES. THE INFORMATION IN THIS DOCUMENT MAY ONLY BE ACCURATE
ON THE DATE OF THIS DOCUMENT.

                     DEALER PROSPECTUS DELIVERY OBLIGATION

     UNTIL AUGUST 13, 1999, ALL DEALERS THAT EFFECT TRANSACTIONS IN THESE
SECURITIES, WHETHER OR NOT PARTICIPATING IN THIS OFFERING, MAY BE REQUIRED TO
DELIVER A PROSPECTUS. THIS DELIVERY REQUIREMENT IS IN ADDITION TO THE DEALER'S
OBLIGATION TO DELIVER A PROSPECTUS WHEN ACTING AS AN UNDERWRITER AND WITH
RESPECT TO UNSOLD ALLOTMENTS OR SUBSCRIPTIONS.
<PAGE>   3

                               PROSPECTUS SUMMARY

     The following summary highlights information we present more fully
elsewhere in this prospectus. This prospectus contains forward-looking
statements that involve risks and uncertainties. Our actual results could differ
materially from those anticipated in the forward-looking statements as a result
of factors described under the heading "Risk Factors" and elsewhere in this
prospectus. Except where we state otherwise, all information in this prospectus
(1) reflects the conversion of all outstanding shares of our preferred stock
into 13,907,399 shares of common stock effective automatically upon the closing
of this offering, (2) reflects the conversion of $7,994,250 of our convertible
note into 1,045,000 shares of common stock upon the closing of this offering,
and (3) assumes no exercise of the underwriters' over-allotment option.

                             GADZOOX NETWORKS, INC.

     We are a leading provider of products that connect computer systems to data
storage devices. Our products are designed to enable computers to access larger
amounts of data, faster and more reliably than previously possible. We believe
that this capability will become more and more critical since the amount of data
that businesses require in order to operate is increasing at a rapid rate.
According to International Data Corporation (September 1998), multiuser disk
storage grew significantly from approximately 10,000 trillion bytes in 1994 to
approximately 116,000 trillion bytes in 1998, and will reach approximately
1,400,000 trillion bytes in 2002. This is driven by the growth in data-intensive
environments and applications such as the Internet, e-commerce, data
warehousing, data mining and enterprise resource planning.

     Historically, data storage devices have only been connected to a single
computer system. Our products enable data storage devices to be connected to
multiple computer systems. Our products enable the creation of networks made up
of computers and storage devices which have become known as "storage area
networks," or SANs. We helped pioneer the development of storage area networks
by taking the concepts used to connect computers to one another in local area
networks and applying them to the connection of computers and data storage
devices. Our products complement local area network and wide area network
products and are based on fibre channel technology. Fibre channel technology is
a set of specifications which were designed to enable computing devices to
exchange larger amounts of data more reliably and at higher speeds than possible
using existing technologies. Fibre channel technology has been endorsed and
adopted by leading computer and data storage companies such as Compaq Computer
Corporation, EMC Corporation, Hewlett-Packard Company, IBM Corporation, Seagate
Technology and Sun Microsystems.

     We have led the storage area network market in the introduction of a number
of storage area network products including our high-speed fibre channel hub, our
fibre channel managed hub, our fibre channel switch to support data backup
without a server, our modular switch and our storage area network management
software application. Hubs and switches are devices that direct the flow of data
from one computing device to another. We sell our products primarily through
leading original equipment manufacturers including Hewlett-Packard Company,
Compaq Computer Corporation, Avid Technology Corporation and Data General
Corporation. Additionally, we believe that we have built one of the largest
networks of distributors and resellers to serve the storage area network market.
According to International Data Corporation (January 1999), our installed base
of fibre channel networking ports represents the largest share of the total hub
and switch ports shipped in the two years ended December 31, 1998. We believe we
have the largest installed base of SAN networking ports.
                                        3
<PAGE>   4

     Our storage area network products are designed to provide the following
solutions to the limitations of traditional computer-storage connectivity
methods:

     - Capacity Scalability, the ability to connect millions of data storage
       devices to more effectively support the growth of data;

     - Increased Performance, the ability to transmit data faster between
       computers and storage devices to provide rapid access to data;

     - Manageability, the ability to monitor and control the function of storage
       area network devices from remote locations to reduce the cost and
       complexity of transmitting data and troubleshooting failures;

     - Data Availability and Disaster Tolerance, the ability to provide multiple
       copies of data and alternate routes for accessing data to help ensure
       continuous access in the event of system failures or site disasters;

     - Interoperability, the ability to simplify the installation of storage
       area network products and enhance the protection of existing user
       investments;

     - Modular Scalability, the ability to upgrade capabilities with a building
       block approach to extend data storage capacity and enhance data
       availability;

     - Increased Network Stability, the ability to provide dependable
       connections to help ensure reliable access to data; and

     - Advanced Data Management, the ability to provide a platform for the
       development of new methods that further increase data availability and
       reliability.

     We believe that storage area networks enabled by our products can form the
foundation for more effective management of the growth in data. Just as local
area networks formed a platform for the development of client-server computing,
we believe that storage area networks have the potential to enable the
development of a distributed data management architecture. We plan to leverage
our technological expertise, our market leadership and strong partnerships to
drive the development of this architecture and create new opportunities for our
business.

     Our principal executive offices are located at 5850 Hellyer Avenue, San
Jose, California 95138, and our telephone number is (408) 360-4950. Our fiscal
year ends on March 31 of each year.

     The Gadzoox logo and Gadzoox(R) are registered trademarks of our company.
Bitstrip(TM), Gibraltar(TM), Denali(TM), Reflex(TM), PerfectPort(TM),
Capellix(TM), IntraCom(TM), Nomad(TM) and Ventana(TM) are trademarks of our
company. This prospectus contains other trademarks and trade names of our
company and other entities. Our website on the Internet is located at
http://www.gadzoox.com. Information contained on our website does not constitute
part of this prospectus.
                                        4
<PAGE>   5

                                  THE OFFERING

Common stock offered..........3,500,000 shares

Common stock to be outstanding
  after this offering.........24,587,393 shares(1)

Use of proceeds...............General corporate purposes, including capital
                              expenditures, working capital and potential
                              acquisitions

Nasdaq National Market
symbol........................ZOOX

                         SUMMARY FINANCIAL INFORMATION
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                                                                               QUARTER ENDED
                                                         YEAR ENDED MARCH 31,                    JUNE 30,
                                             ---------------------------------------------   -----------------
                                             1995    1996     1997       1998       1999      1998      1999
                                             -----   -----   -------   --------   --------   -------   -------
                                                                                                (UNAUDITED)
<S>                                          <C>     <C>     <C>       <C>        <C>        <C>       <C>
STATEMENTS OF OPERATIONS DATA:
  Net revenues.............................  $  --   $ 104   $   823   $  9,811   $ 24,821   $ 5,406   $ 9,211
  Loss from operations.....................  $(316)  $(881)  $(3,856)  $(10,013)  $(15,706)  $(3,524)  $(3,094)
  Net loss.................................  $(310)  $(856)  $(2,089)  $ (9,640)  $(15,932)  $(3,545)  $(3,236)
  Basic net loss per share.................                  $ (0.59)  $  (2.41)  $  (3.33)  $ (0.79)  $ (0.58)
  Weighted average shares used in computing
     basic loss per share(2)...............                    3,551      3,995      4,789     4,468     5,626
  Pro forma basic net loss per share
     (unaudited)...........................                                       $  (0.91)  $ (0.21)  $ (0.17)
  Weighted average shares used in computing
     pro forma basic net loss per share
     (unaudited)(1)(2).....................                                         17,594    16,789    19,533
</TABLE>

<TABLE>
<CAPTION>
                                                                            JUNE 30, 1999
                                                              -----------------------------------------
                                                                                           PRO FORMA
                                                              ACTUAL     PRO FORMA(3)    AS ADJUSTED(4)
                                                              -------    ------------    --------------
                                                                             (UNAUDITED)
<S>                                                           <C>        <C>             <C>
BALANCE SHEET DATA:
  Cash and cash equivalents.................................  $ 8,845      $ 8,845          $76,325
  Working capital...........................................   13,156       13,156           80,636
  Total assets..............................................   25,274       25,274           92,754
  Long-term obligations.....................................   15,047       15,047            7,053
  Total stockholders' equity................................    2,950        2,950           78,424
</TABLE>

- -------------------------
(1) Based on the number of shares of common stock outstanding as of June 30,
    1999 (on a pro forma basis to give effect to the conversion of all
    outstanding shares of our preferred stock into 13,907,399 shares of common
    stock effective automatically upon the closing of this offering). Excludes
    6,225,254 shares which may be issued upon exercise of outstanding options
    and warrants or which may be issued under our various stock compensation
    plans, or upon conversion of a portion of our convertible note. For
    additional information regarding these shares, see Footnote 1 to the table
    in "Capitalization."

(2) See Note 2 of Notes to the Financial Statements for an explanation of the
    determination of the number of shares used in computing basic net loss and
    pro forma basic net loss per share data.

(3) Reflects the conversion of all outstanding shares of our preferred stock
    into 13,907,399 shares of common stock effective automatically upon the
    closing of this offering.

(4) The pro forma as adjusted amounts reflect (1) the sale of 3,500,000 shares
    of common stock in this offering at the initial public offering price of
    $21.00 per share and the application of the net proceeds (after deducting
    underwriting discounts and commissions and estimated offering expenses), (2)
    the conversion of all outstanding shares of our preferred stock into
    13,907,399 shares of common stock effective automatically upon the closing
    of this offering and (3) the conversion of $7,994,250 of our convertible
    note into 1,045,000 shares of common stock upon the closing of this
    offering.
                                        5
<PAGE>   6

                                  RISK FACTORS

     You should carefully consider the following risk factors and all other
information contained in this prospectus before purchasing our common stock.
Investing in our common stock involves a high degree of risk. Risks and
uncertainties, in addition to those we describe below, that are not presently
known to us or that we currently believe are immaterial may also impair our
business operations. If any of the following risks occurs, our business,
operating results and financial condition could be seriously harmed. In
addition, the trading price of our common stock could decline due to the
occurrence of any of these risks, and you may lose all or part of your
investment. See "Special Note Regarding Forward-Looking Statements."

WE HAVE INCURRED SIGNIFICANT LOSSES IN EVERY FISCAL YEAR SINCE OUR INCEPTION AND
MAY NEVER BECOME PROFITABLE.

     We have incurred significant losses since inception and expect to continue
to incur losses on both a quarterly and annual basis for the foreseeable future.
As of June 30, 1999, our accumulated deficit was $32.3 million. For the fiscal
year ended March 31, 1999, our net loss was $15.9 million, and for the quarter
ended June 30, 1999, our net loss was $3.2 million. Although our net revenues
have grown in recent quarters, we may not be able to sustain this growth, and we
may not realize sufficient net revenues to achieve profitability. We also expect
to incur significant product development, sales and marketing and administrative
expenses and, as a result, we will need to generate increased net revenues to
achieve profitability. Further, even if we achieve profitability, given the
competition in, and the evolving nature of the storage area market, we may not
be able to sustain or increase profitability on a quarterly or annual basis.

DUE TO OUR LIMITED OPERATING HISTORY, WE MAY HAVE DIFFICULTY ACCURATELY
PREDICTING REVENUES FOR FUTURE PERIODS AND APPROPRIATELY BUDGETING FOR EXPENSES,
AND, BECAUSE MOST OF OUR EXPENSES ARE FIXED IN THE SHORT-TERM, WE MAY NOT BE
ABLE TO DECREASE OUR EXPENSES IN A TIMELY MANNER TO OFFSET ANY UNEXPECTED
SHORTFALL IN REVENUES.

     We have generated net revenues for less than five years and, thus, we have
only a short history from which to predict future net revenues. This limited
operating experience, combined with the rapidly evolving nature of the storage
area network market in which we sell our products, reduces our ability to
accurately forecast our quarterly and annual revenue. Further, we plan our
operating expenses based primarily on these revenue projections. Because most of
our expenses are fixed in the short-term or incurred in advance of anticipated
revenue, we may not be able to decrease our expenses in a timely manner to
offset any unexpected shortfall in revenue. For example, in July 1998, Digital
Equipment Corporation cancelled orders for our Bitstrip product, which resulted
in a corresponding decrease in net revenues. If a similar situation were to
occur in the future, we may incur additional unexpected losses which could
seriously harm our business. For further financial information relating to our
business, see "Selected Financial Data" and "Management's Discussion and
Analysis of Financial Condition and Results of Operations."

                                        6
<PAGE>   7

WE HAVE A HISTORY OF QUARTERLY AND ANNUAL FLUCTUATIONS IN OUR NET REVENUES AND
OPERATING RESULTS, AND EXPECT THESE FLUCTUATIONS TO CONTINUE, WHICH MAY RESULT
IN VOLATILITY IN OUR STOCK PRICE.

     Our quarterly and annual net revenues and operating results have varied
significantly in the past and are likely to vary significantly in the future due
to a number of factors, many of which are outside of our control. The primary
factors that may cause our quarterly net revenues and operating results to
fluctuate include the following:

     - fluctuations in demand for our products and services;

     - the timing of customer orders and product implementations, particularly
       large orders from our customers;

     - our ability to develop, introduce, ship and support new products and
       product enhancements;

     - the rate of adoption of storage area networks as an alternative to
       existing data storage and management systems;

     - announcements and new product introductions by our competitors and
       deferrals of customer orders in anticipation of new products, services or
       product enhancements introduced by us or our competitors;

     - decreases in the prices at which we can sell our products;

     - our ability to obtain sufficient supplies of components, including sole
       or limited source components, at expected prices; and

     - the mix of our hub and switch products sold and the mix of distribution
       channels through which they are sold.

     Accordingly, you should not rely on the results of any past periods as an
indication of our future performance. It is likely that in some future periods,
our operating results may be below expectations of public market analysts or
investors. If this occurs, our stock price may drop.

THE STORAGE AREA NETWORK MARKET IN WHICH WE COMPETE IS NEW AND UNPREDICTABLE,
AND IF THIS MARKET DOES NOT DEVELOP AND EXPAND AS WE ANTICIPATE, OUR BUSINESS
WILL SUFFER.

     The market for storage area networks and related hub and switch products
has only recently begun to develop and is rapidly evolving. Because this market
is new, it is difficult to predict its potential size or future growth rate. Our
products are used exclusively in storage area networks. Accordingly, widespread
adoption of storage area networks as an integral part of data-intensive
enterprise computing environments is critical to our future success. Potential
end-user customers who have invested substantial resources in their existing
data storage and management systems may be reluctant or slow to adopt a new
approach, like storage area networks. Our success in generating net revenues in
this emerging market will depend on, among other things, our ability to:

     - educate potential original equipment manufacturer customers, distribution
       channel partners and end users about the benefits of storage area
       networks and hub and switch technology;

     - maintain and enhance our relationships with leading original equipment
       manufacturer customers and channel partners; and

                                        7
<PAGE>   8

     - predict and base our products on standards which ultimately become
       industry standards.

     In addition, storage area networks are often implemented in connection with
deployment of new storage systems and servers. Accordingly, our future success
is also substantially dependent on the market for new storage systems and
servers.

WE HAVE LIMITED PRODUCT OFFERINGS AND OUR BUSINESS MAY SUFFER IF DEMAND FOR ANY
OF THESE PRODUCTS DECLINES OR FAILS TO DEVELOP AS WE EXPECT.

     We derive a substantial portion of our net revenues from a limited number
of products. Specifically, in fiscal 1999, we derived approximately 75% of our
net revenues from our Gibraltar hub products and approximately 16% of our net
revenues from our Bitstrip hub product. We expect that net revenues from our hub
products will continue to account for a substantial portion of our total net
revenues for the foreseeable future. As a result, for the foreseeable future, we
will continue to be subject to the risk of a dramatic decrease in net revenues
if demand for these products declines. Therefore, continued and widespread
market acceptance of these products is critical to our future success.

     Factors that may affect the market acceptance of our products, some of
which are beyond our control, include the following:

     - growth and changing requirements of the storage area network and hub and
       switch product market;

     - performance, quality, price and total cost of ownership of our products;

     - availability, price, quality and performance of competing products and
       technologies; and

     - successful development of our relationships with existing and potential
       original equipment manufacturer customers and distribution channel
       partners.

OUR BUSINESS WILL SUFFER IF WE FAIL TO DEVELOP AND SUCCESSFULLY INTRODUCE NEW
AND ENHANCED PRODUCTS THAT MEET THE CHANGING NEEDS OF OUR CUSTOMERS.

     Our future success depends upon our ability to address the rapidly changing
storage area network market including changes in relevant industry standards and
the changing needs of our customers by developing and introducing high-quality,
technologically-progressive, cost-effective products, product enhancements and
services on a timely basis. For example, in May, 1999, we announced the launch
of our Capellix switch and plan to announce other switching products. We expect
to begin commercial shipment of the Capellix switch product in the third
calendar quarter of 1999. Our future net revenues growth will be dependent on
the success of these and other new products, and we may not be able to develop
and introduce these or other new products successfully in the timeframe we
expect. Further, we cannot be certain of the demand for, and market acceptance
of, these and other new products. In addition, we must manage successfully the
introduction of new or enhanced products to minimize disruption in our
customers' ordering patterns, avoid excessive levels of older product
inventories and ensure that adequate supplies of new products can be delivered
to meet our customers' demands. Our net revenues may be reduced if we fail to
develop product enhancements, if we fail to introduce new products or if any new
products or product enhancements that we develop and introduce are not broadly
accepted.

                                        8
<PAGE>   9

WE WILL BE UNABLE TO MANUFACTURE OR SELL OUR PRODUCTS IF OUR SOLE PRODUCT
MANUFACTURER IS UNABLE TO MEET OUR MANUFACTURING NEEDS.

     Sanmina Corporation, a third-party manufacturer for numerous companies,
manufactures all of our products at its Santa Clara, California facility.
Sanmina Corporation is not obligated to supply products to us for any specific
period, or in any specific quantity, except as may be provided in a particular
purchase order which has been accepted by Sanmina Corporation. If Sanmina
Corporation experiences delays, disruptions, capacity constraints or quality
control problems in its manufacturing operations, then product shipments to our
customers could be delayed, which would negatively impact our net revenues and
our competitive position and reputation.

     Further, our business would be harmed if we fail to effectively manage the
manufacture of our products. We generally place orders with Sanmina Corporation
at least two months prior to scheduled delivery of products to our customers.
Accordingly, if we inaccurately forecast demand for our products, we may be
unable to obtain adequate manufacturing capacity from Sanmina Corporation or
adequate quantities of components to meet our customers' delivery requirements
or we may accumulate excess inventories. In addition, we anticipate that we may
relocate our manufacturing operations to Sanmina Corporation's manufacturing
facility in Guntersville, Alabama during the second half of fiscal 2000. We
could experience difficulties and disruptions in the manufacture of our products
while we transition to this new facility. Manufacturing disruption could prevent
us from achieving timely delivery of products and could result in lost net
revenues.

     Additionally, we must coordinate our efforts with those of our suppliers
and Sanmina Corporation to rapidly achieve volume production. Although we have
not experienced supply problems with Sanmina Corporation, we have experienced
delays in product deliveries from one of our former contract manufacturers.
Moreover, we may in the future need to find a new contract manufacturer that can
manufacture our products in higher volume and at lower costs. We may not find a
contract manufacturer that meets our needs. Additionally, qualifying a new
contract manufacturer and commencing volume production is expensive and time
consuming. If we are required or choose to change contract manufacturers, we may
lose net revenues and our customer relationships may suffer.

BECAUSE WE DEPEND ON SOLE SOURCE AND LIMITED SOURCE SUPPLIERS FOR KEY
COMPONENTS, WE ARE SUSCEPTIBLE TO SUPPLY SHORTAGES THAT COULD ADVERSELY AFFECT
OUR OPERATING RESULTS.

     We depend upon a single source for each type of our application-specific
integrated circuits, or ASICs, and limited sources of supply for several key
components, including power supplies, chassis and optical transceivers. We have
in the past experienced and may in the future experience shortages of, or
difficulties in acquiring, these components. If we are unable to buy these
components, we will not be able to manufacture our products on a timely basis.

BECAUSE WE ORDER COMPONENTS AND MATERIALS BASED ON ROLLING FORECASTS, WE MAY
OVERESTIMATE OR UNDERESTIMATE OUR COMPONENT AND MATERIAL REQUIREMENTS, WHICH
COULD INCREASE OUR COSTS OR PREVENT US FROM MEETING CUSTOMER DEMAND.

     We use rolling forecasts based on anticipated product orders to determine
our component requirements. Lead times for materials and components that we
order vary significantly and depend on factors such as specific supplier
requirements, contract terms and current market demand for such components. As a
result, our component requirement forecasts may not be accurate. If we
overestimate our component requirements, we may

                                        9
<PAGE>   10

have excess inventory, which would increase our costs. If we underestimate our
component requirements, we may have inadequate inventory, which could interrupt
our manufacturing and delay delivery of our products to our customers. Any of
these occurrences would negatively impact our business and operating results.

BECAUSE WE DEPEND ON A FEW KEY ORIGINAL EQUIPMENT MANUFACTURER CUSTOMERS, THE
LOSS OF ANY OF THESE CUSTOMERS COULD SIGNIFICANTLY REDUCE OUR NET REVENUES.

     We depend on a few key original equipment manufacturer customers. In fiscal
1999, approximately 84% of our net revenues came from five customers with sales
to Compaq Computer Corporation, Digital Equipment Corporation and
Hewlett-Packard Company each accounting for more than 10% of our net revenues.
For the quarter ended June 30, 1999, approximately 76% of our net revenues came
from three customers with Compaq Computer Corporation (which now incorporates
all sales previously reported separately for Digital Equipment Corporation),
Hewlett-Packard Company and Bell Microproducts, Inc. each accounting for more
than 10% of our net revenues. In fiscal 1998, approximately 69% of our net
revenues came from sales to Hewlett-Packard Company and Digital Equipment
Corporation. Although we intend to expand our original equipment manufacturer
customer base, we anticipate that our operating results will continue to depend
on sales to a relatively small number of customers. None of our current
customers have any minimum purchase obligations, and they may stop placing
orders with us at any time, regardless of any forecast they may have previously
provided. The loss of any of our key customers, or a significant reduction in
sales to those customers, could significantly reduce our net revenues. For
example, in July 1998, Digital Equipment Corporation cancelled orders for our
Bitstrip product, and in December 1998, Hewlett-Packard Company unexpectedly
reduced orders for our Gibraltar 10-port product. Digital Equipment
Corporation's order cancellation resulted in a reduction of anticipated net
revenues by approximately 12% for the fiscal year ended March 31, 1999.

OUR RELIANCE ON ORIGINAL EQUIPMENT MANUFACTURER CUSTOMERS AND DISTRIBUTION
CHANNEL PARTNERS AND THE LENGTHY PROCESS REQUIRED TO ADD THESE PARTNERS MAY
IMPEDE THE GROWTH OF OUR NET REVENUES.

     We rely on original equipment manufacturer customers and distribution
channel partners to distribute and sell our products. As a result, our success
depends substantially on (1) our ability to initiate, manage and expand our
relationships with significant original equipment manufacturer customers, (2)
our ability to attract distribution channel partners that will sell our products
and (3) the sales efforts of these original equipment manufacturer customers and
distribution channel partners.

     Our original equipment manufacturer customers typically conduct significant
evaluation, testing, implementation and acceptance procedures before they begin
to market and sell new technologies, including our products. Based on our
experience with our larger original equipment manufacturer customers, this
evaluation process is lengthy and has historically been as long as nine months.
This process is also complex and may require significant sales, marketing and
management efforts on our part. The complexity of this process increases if we
must qualify our products with multiple customers at the same time. In addition,
once our products have been qualified, the length of the sales cycle of each of
our original equipment manufacturer customers may vary depending upon whether
our products are being bundled with another product or are being sold as an
option or add-on. Sales to distribution channel partners may also require
lengthy sales and marketing

                                       10
<PAGE>   11

cycles. As a result, we may expend significant resources in developing partner
relationships before recognizing any revenue.

     We may not be able to manage and expand our relationships with original
equipment manufacturer customers and distribution channel partners successfully
and they may not market our products successfully. Moreover, our agreements with
original equipment manufacturer customers and distribution channel partners have
no minimum purchase commitments. Our failure to manage and expand our
relationships with original equipment manufacturer customers and distribution
channel partners or their failure to market our products could substantially
reduce our net revenues and seriously harm our business.

OUR OPERATING RESULTS MAY SUFFER BECAUSE OF COMPETITION IN THE STORAGE AREA
NETWORK MARKET, AS WELL AS ADDITIONAL COMPETITION FROM DATA NETWORKING COMPANIES
AND ENTERPRISE SOFTWARE DEVELOPERS.

     The market for our storage area network hub and switch products is
competitive, and is likely to become even more competitive. In the storage area
network market, our current competitors include Ancor Communications, Inc.,
Brocade Communications Systems, Inc., Emulex Corporation and Vixel Corporation.
In addition to these companies we expect new storage area network competitors to
emerge. In the future, we may also compete against data networking companies
which may develop storage area network products. Furthermore, although we
currently offer products that complement the software products offered by Legato
Systems, Inc. and Veritas Software Corporation, they and other enterprise
software developers may in the future compete with us. We also compete with
providers of data storage solutions that employ traditional storage
technologies, including small computer system interface-based technology such as
Adaptec, Inc., LSI Logic Corporation and QLogic Corporation.

     Increased competition could result in pricing pressures, reduced sales,
reduced margins, reduced profits, reduced market share or the failure of our
products to achieve or maintain market acceptance. Some of our competitors and
potential competitors have longer operating histories, greater name recognition,
access to larger customer bases, more established distribution channels or
substantially greater resources than we have. As a result, they may be able to
respond more quickly than we can to new or changing opportunities, technologies,
standards or customer requirements. Moreover, we have only recently begun to
offer storage area network switch products. Therefore, we may not be able to
compete successfully in the storage area network switch product market.

IF WE CANNOT INCREASE OUR SALES VOLUMES, REDUCE OUR COSTS OR INTRODUCE HIGHER
MARGIN PRODUCTS TO OFFSET ANTICIPATED REDUCTIONS IN THE AVERAGE UNIT PRICE OF
OUR PRODUCTS, OUR OPERATING RESULTS MAY SUFFER.

     Although we have not experienced an overall decrease in the average selling
prices of our products, we anticipate that as products in the storage area
market become more commoditized, the average unit price of our products may
decrease in the future in response to changes in product mix, competitive
pricing pressures, new product introductions by us or our competitors or other
factors. If we are unable to offset the anticipated decrease in our average
selling prices by increasing our sales volumes, our net revenues will decline.
In addition, to maintain our gross margins, we must continue to reduce the
manufacturing cost of our products. Further, as average unit prices of our
current products decline, we must develop and introduce new products and product
enhancements with higher margins. If we cannot maintain our gross margins, our
business

                                       11
<PAGE>   12

could be seriously harmed, particularly if the average selling price of our
products decreases significantly.

OUR PRODUCTS ARE COMPLEX AND MAY CONTAIN UNDETECTED SOFTWARE OR HARDWARE ERRORS,
WHICH COULD LEAD TO AN INCREASE IN OUR COSTS OR A REDUCTION IN OUR NET REVENUES.

     Networking products frequently contain undetected software or hardware
errors when first introduced or as new versions are released. Our products are
complex and we have from time to time found errors in existing products, and we
may from time to time find errors in our existing, new or enhanced products. In
addition, our products are combined with products from other vendors. As a
result, should problems occur, it may be difficult to identify the source of the
problem. The occurrence of hardware and software errors, whether caused by our
or another vendor's storage area network products, could adversely affect sales
of our products, cause us to incur significant warranty and repair costs, divert
the attention of our engineering personnel from our product development efforts
and cause significant customer relations problems.

IF WE DO NOT HIRE, RETAIN AND INTEGRATE HIGHLY SKILLED MANAGERIAL, ENGINEERING,
SALES, MARKETING, FINANCE AND OPERATIONS PERSONNEL, OUR BUSINESS MAY SUFFER.

     Our success depends to a significant degree upon the continued
contributions of our key personnel in engineering, sales, marketing, finance and
operations, many of whom would be difficult to replace. We do not maintain key
person life insurance on most of our key personnel and do not have employment
contracts with any of our key personnel. The loss of the services of any of our
key personnel could have a negative impact on our business.

     We also believe that our success depends to a significant extent on the
ability of our key personnel to operate effectively, both individually and as a
group. Many of our employees have only recently joined us. If we are unable to
integrate new employees in a timely and cost-effective manner, our operating
results may suffer.

     We believe our future success will also depend in large part upon our
ability to attract and retain highly skilled managerial, engineering, sales,
marketing, finance and operations personnel. Competition for these people is
intense, especially in the San Francisco Bay area where our operations are
headquartered. In particular, we have experienced difficulty in hiring qualified
ASIC, software, system, test and customer support engineers and we may not be
successful in attracting and retaining individuals to fill these positions. If
we are unable to attract or retain qualified personnel in the future, or if we
experience delays in hiring required personnel, particularly qualified engineers
and sales personnel, our ability to develop, introduce and sell our products
could be harmed. In addition, companies in our industry whose employees accept
positions with competitors frequently claim that their competitors have engaged
in unfair hiring practices. We may be subject to such claims in the future as we
seek to hire qualified personnel. Any claim of this nature could result in
material litigation. We could incur substantial costs in defending ourselves
against these claims, regardless of their merits.

WE HAVE EXPERIENCED A PERIOD OF RAPID GROWTH, AND IF WE ARE NOT ABLE TO
SUCCESSFULLY MANAGE THIS AND FUTURE GROWTH, OUR BUSINESS MAY SUFFER.

     We have recently experienced a period of rapid growth. At March 31, 1997,
we had a total of 38 employees, and at June 30, 1999, we had a total of 146
employees. We plan to continue to hire new employees to expand our operations
significantly to pursue existing

                                       12
<PAGE>   13

and potential market opportunities. This growth will place a significant demand
on our management and our operational resources. In order to manage growth
effectively, we must implement and improve our operational systems, procedures
and controls on a timely basis. Our key personnel have limited experience
managing this type of growth. If we cannot manage growth effectively, our
business could suffer.

BECAUSE OUR INTELLECTUAL PROPERTY IS CRITICAL TO THE SUCCESS OF OUR BUSINESS,
OUR OPERATING RESULTS WOULD SUFFER IF WE ARE UNABLE TO ADEQUATELY PROTECT OUR
INTELLECTUAL PROPERTY.

     Because our products rely on proprietary technology and will likely
continue to rely on technological advancements for market acceptance, we believe
that the protection of our intellectual property rights will be critical to the
success of our business. To protect our intellectual property rights, we rely on
a combination of patent, copyright, trademark and trade secret laws and
restrictions on disclosure. We also enter into confidentiality or license
agreements with our employees, consultants and corporate partners, and control
access to and distribution of our software, documentation and other proprietary
information.

     Despite our efforts to protect our proprietary rights, unauthorized parties
may copy or otherwise obtain and use our products or technology. Monitoring
unauthorized use of our products is difficult and the steps we have taken may
not prevent unauthorized use of our technology, particularly in foreign
countries where the laws may not protect our proprietary rights as fully as in
the United States. For a more complete discussion of the protection of our
intellectual property, see "Business -- Intellectual Property." If we are unable
to protect our intellectual property from infringement, other companies may be
able to use our intellectual property to offer competitive products at lower
prices. We may not be able to effectively compete against these companies.

WE RELY HEAVILY ON OUR INTELLECTUAL PROPERTY, AND EFFORTS TO PROTECT IT MAY
CAUSE US TO BECOME INVOLVED IN COSTLY AND LENGTHY LITIGATION WHICH COULD
SERIOUSLY HARM OUR BUSINESS.

     Although we are not currently involved in any intellectual property
litigation, we may be a party to litigation in the future either to protect our
intellectual property or as a result of an alleged infringement of others'
intellectual property. These claims and any resulting litigation could subject
us to significant liability for damages and could cause our proprietary rights
to be invalidated. Litigation, regardless of the merits of the claim or outcome,
would likely be time-consuming and expensive to resolve and would divert
management time and attention. Any potential intellectual property litigation
could also force us to do one or more of the following:

     - stop using the challenged intellectual property or selling our products
       or services that incorporate it;

     - obtain a license to use the challenged intellectual property or to sell
       products or services that incorporate it, which license may not be
       available on reasonable terms, or at all; and

     - redesign those products or services that are based on or incorporate the
       challenged intellectual property.

     If we are forced to take any of the foregoing actions, we may be unable to
manufacture and sell our products, and our net revenues would be substantially
reduced.

                                       13
<PAGE>   14

IF WE, OUR KEY SUPPLIERS OR OUR CUSTOMERS FAIL TO BE READY FOR THE YEAR 2000
CALENDAR CHANGE, OUR BUSINESS MAY BE DISRUPTED AND OUR NET REVENUES MAY DECLINE.

     The year 2000 issue refers to the potential for disruption to business
activities caused by system failures or miscalculations that are triggered by
advancement of date records past the year 1999. A failure due to year 2000
issues involves numerous risks including:

     - potential product warranty or other claims from our customers;

     - negative impact on market demand for storage area networks or related hub
       and switch products until preparations for the calendar change by
       existing and potential customers are complete;

     - manufacturing, information, facility and development systems problems,
       both those that are unique to us and those that affect geographical areas
       where our business and employees reside.

     Although we have completed testing our products' readiness for the year
2000 calendar change and believe that our products are ready for that event, we
may yet discover that our current products, any of our new products or any
product enhancements we develop in the future have problems because of the year
2000 calendar change. In this event, our business may be adversely affected and
our customer relationships may suffer. We have not completed our internal year
2000 risk assessment. We may find that our internal systems are not ready for
the year 2000 calendar change. In this event, our business may be adversely
affected and we may experience delays or disruptions in sales or deliveries of
our product. See "Management's Discussion and Analysis of Financial Condition
and Results of Operations."

INDUSTRY STANDARDS AND GOVERNMENT REGULATIONS AFFECTING OUR BUSINESS EVOLVE
RAPIDLY, AND IF WE CANNOT DEVELOP PRODUCTS THAT ARE COMPATIBLE WITH THESE
EVOLVING STANDARDS, OUR BUSINESS WILL SUFFER.

     Our products must comply with industry standards. For example, in the
United States, our products must comply with various regulations and standards
defined by the Federal Communications Commission. Internationally, our products
are also required to comply with standards established by authorities in various
countries. Any new products and product enhancements that we introduce in the
future must also meet industry standards at the time they are introduced.
Failure to comply with existing or evolving industry standards or to obtain
timely domestic or foreign regulatory approvals or certificates could materially
harm our business.

     Our products comprise only a part of the entire storage area network. All
components of the storage area network must comply with the same standards in
order to operate efficiently together. We depend on companies that provide other
components of the storage area network to support the industry standards as they
evolve. Many of these companies are significantly larger and more influential in
effecting industry standards than we are. Some industry standards may not be
widely adopted or they may not be implemented uniformly, and competing standards
may emerge that may be preferred by original equipment manufacturer customers or
end users. If larger companies do not support the same industry standards that
we do, or if competing standards emerge, market acceptance of our products could
suffer.

                                       14
<PAGE>   15

WE PLAN TO INCREASE OUR INTERNATIONAL SALES ACTIVITIES WHICH WILL SUBJECT US TO
ADDITIONAL BUSINESS RISKS.

     For the quarter ended June 30, 1999, 31.7% of our net revenues were from
international sales activities, and for the fiscal year ended March 31, 1999,
20.5% of our net revenues were from international sales activities. We plan to
increase our international sales activities. Our international sales will be
limited if we cannot establish relationships with international distributors,
establish additional foreign operations, expand international sales channel
management, hire additional personnel and develop relationships with
international service providers. Even if we are able to successfully continue
international operations, we may not be able to maintain or increase
international market demand for our products. Our international operations are
subject to a number of risks, including:

     - multiple protectionist, adverse and changing governmental laws and
       regulations;

     - reduced or limited protections of intellectual property rights;

     - potentially adverse tax consequences resulting from changes in tax laws;
       and

     - political and economic instability.

     To date, none of our international net revenues and costs have been
denominated in foreign currencies. As a result, an increase in the value of the
U.S. dollar relative to foreign currencies could make our products more
expensive and thus less competitive in foreign markets. A portion of our
international net revenues may be denominated in foreign currencies in the
future, which would subject us to risks associated with fluctuations in those
foreign currencies.

WE MAY BECOME INVOLVED IN COSTLY AND TIME-CONSUMING LITIGATION THAT MAY
SUBSTANTIALLY INCREASE OUR COSTS AND THEREBY HARM OUR BUSINESS.

     We may from time to time become involved in various lawsuits and legal
proceedings which arise in the ordinary course of our business. For example, in
May 1999, a former employee filed a complaint against us. We believe this claim
is without merit and that resolution of this claim will not have a material
adverse effect on our financial condition. However, litigation is subject to
inherent uncertainties, and an adverse result in this or other matters that may
arise from time-to-time may harm our business.

WE MAY ENGAGE IN FUTURE ACQUISITIONS THAT DILUTE OUR STOCKHOLDERS' EQUITY AND
CAUSE US TO INCUR DEBT OR ASSUME CONTINGENT LIABILITIES.

     As part of our strategy, we expect to review opportunities to buy other
businesses or technologies that would complement our current products, expand
the breadth of our market or enhance our technical capabilities, or that may
otherwise offer growth opportunities. While we have no current agreements or
negotiations underway, we may buy businesses, products or technologies in the
future. In the event of any future purchases, we could:

     - issue stock that would dilute our current stockholders' percentage
       ownership;

     - incur debt; or

     - assume liabilities.

     These purchases could also involve numerous risks, including:

     - problems integrating the purchased operations, technologies or products;

     - unanticipated costs;

     - diversion of management's attention from our core business;

     - adverse effects on existing business relationships with suppliers and
       customers;

                                       15
<PAGE>   16

     - risks associated with entering markets in which we have no or limited
       prior experience; and

     - potential loss of key employees of purchased organizations.

     We may not be able to successfully integrate any businesses, products,
technologies or personnel that we might purchase in the future.

OUR PRINCIPAL STOCKHOLDERS HAVE SIGNIFICANT VOTING POWER AND MAY TAKE ACTIONS
THAT MAY NOT BE IN THE BEST INTERESTS OF OUR OTHER STOCKHOLDERS.

     Upon completion of this offering, our executive officers and directors and
their affiliates will beneficially own, in the aggregate, approximately 63.9% of
our outstanding common stock. As a result, these stockholders will be able to
exercise significant control over all matters requiring stockholder approval,
including the election of directors and approval of significant corporate
transactions, which could delay or prevent an outside party from acquiring or
merging with us. For a full presentation of the equity ownership of these
stockholders, see "Principal Stockholders."

PROVISIONS IN OUR CHARTER DOCUMENTS AND DELAWARE LAW COULD PREVENT OR DELAY A
CHANGE IN CONTROL OF OUR COMPANY AND MAY REDUCE THE MARKET PRICE OF OUR COMMON
STOCK.

     Provisions of our certificate of incorporation and bylaws may discourage,
delay or prevent a merger or acquisition that a stockholder may consider
favorable. These provisions include:

     - authorizing our board of directors to issue preferred stock without
       stockholder approval;

     - providing for a classified board of directors with staggered, three-year
       terms;

     - prohibiting cumulative voting in the election of directors;

     - requiring super-majority voting to effect significant amendments to our
       certificate of incorporation and bylaws;

     - limiting the ability of stockholders to call special meetings;

     - prohibiting stockholder actions by written consent; and

     - establishing advance notice requirements for nominations for election to
       the board of directors or for proposing matters that can be acted on by
       stockholders at stockholder meetings.

     Certain provisions of Delaware law also may discourage, delay or prevent
someone from acquiring or merging with us, which may cause the market price of
our common stock to decline.

OUR STOCK PRICE MAY BE VOLATILE AND YOU MAY NOT BE ABLE TO RESELL YOUR SHARES AT
OR ABOVE THE INITIAL PUBLIC OFFERING PRICE.

     There has been no public market for our common stock prior to this
offering. The initial public offering price for our common stock will be
determined through negotiations between the underwriters and us. This initial
public offering price may vary from the market price of our common stock after
the offering. If you purchase shares of common stock, you may not be able to
resell those shares at or above the initial public offering

                                       16
<PAGE>   17

price. The market price of our common stock may fluctuate significantly in
response to factors, some of which are beyond our control, including the
following:

     - actual or anticipated fluctuations in our operating results;

     - changes in market valuations of other technology companies;

     - announcements by us or our competitors of significant technical
       innovations, contracts, acquisitions, strategic partnerships, joint
       ventures or capital commitments;

     - losses of major original equipment manufacturer customers, value added
       resellers or distributors;

     - additions or departures of key personnel; and

     - sales of common stock in the future.

     In addition, the stock market has experienced extreme volatility that often
has been unrelated to the performance of particular companies. These market
fluctuations may cause our stock price to fall regardless of our performance.

     You should read the "Underwriting" section for a more complete discussion
of the factors which were considered in determining the initial public offering
price of our common stock.

IF WE ARE UNABLE TO MEET OUR FUTURE CAPITAL REQUIREMENTS, WE MAY BE UNABLE TO
DEVELOP OR ENHANCE OUR PRODUCTS, TAKE ADVANTAGE OF FUTURE OPPORTUNITIES OR
RESPOND TO COMPETITIVE PRESSURES OR UNANTICIPATED REQUIREMENTS, EACH OF WHICH
WOULD MATERIALLY HARM OUR BUSINESS.

     We believe that the net proceeds of this offering, together with our
existing cash balances, credit facilities and cash flow expected to be generated
from future operations, will be sufficient to meet our capital requirements at
least through the next 12 months. However, we may be required, or could elect,
to seek additional funding prior to that time. In the event we are required to
raise additional funds we may not be able to do so on favorable terms, if at
all. Further, if we issue new equity securities, stockholders may experience
additional dilution or the new equity securities may have rights, preferences or
privileges senior to those of existing holders of common stock. If we cannot
raise funds on acceptable terms, we may be unable to develop or enhance our
products, take advantage of future opportunities or respond to competitive
pressures or unanticipated requirements. For additional information on our
anticipated future capital requirements, see "Management's Discussion and
Analysis of Financial Condition and Results of Operations -- Liquidity and
Capital Resources."

SUBSTANTIAL FUTURE SALES OF OUR COMMON STOCK IN THE PUBLIC MARKET MAY DEPRESS
OUR STOCK PRICE.

     Our current stockholders hold a substantial number of shares, which they
will be able to sell in the public market in the near future. Sales of a
substantial number of shares of our common stock after this offering could cause
our stock price to fall. In addition, the sale of these shares could impair our
ability to raise capital through the sale of additional stock. You should read
"Shares Eligible for Future Sale" for a full discussion of shares that may be
sold in the public market in the future.

YOU WILL EXPERIENCE IMMEDIATE AND SUBSTANTIAL DILUTION IN THE BOOK VALUE OF YOUR
SHARES.

     The initial public offering price is substantially higher than the book
value per share of our outstanding common stock immediately after the offering.
Accordingly, if you purchase common stock in the offering, you will incur
immediate dilution of approximately $17.81 in the book value per share of our
common stock from the price you pay for our common stock. For additional
information on this calculation, see "Dilution."

                                       17
<PAGE>   18

               SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

     This prospectus contains forward-looking statements within the meaning of
the federal securities laws that relate to future events or our future financial
performance. In some cases, you can identify forward-looking statements by
terminology such as "may," "will," "should," "expects," "plans," "anticipates,"
"believes," "estimates," "predicts," "intend," "potential" or "continue" or the
negative of such terms or other comparable terminology. In addition, these
forward-looking statements include, but are not limited to, statements regarding
the following: (1) anticipated development and release of new products,
including in particular our Capellix switch, (2) anticipated sources of future
revenues, (3) anticipated product return rates, (4) future third-party
manufacturing arrangements, (5) anticipated expenditures for research and
development, sales and marketing and general and administrative expenses, (6)
the adequacy of our capital resources to fund our operations and (7) our
assessment of our readiness to address, and risks relating to, year 2000 issues.
These statements are only predictions.

     Although we believe that the expectations reflected in the forward-looking
statements are reasonable, we cannot guarantee future results, levels of
activity, performance or achievements. Moreover, neither we nor any other person
assumes responsibility for the accuracy and completeness of these statements. We
are under no duty to update any of the forward-looking statements after the date
of this prospectus or to conform these statements to actual results.

                                USE OF PROCEEDS

     We expect to receive net proceeds of approximately $67,480,000 from the
sale of the 3,500,000 shares of common stock (approximately $77,733,250 if the
underwriters exercise their over-allotment option in full), at the initial
public offering price of $21.00 per share, after deducting the underwriting
discount and estimated offering expenses.

     We expect to use the net proceeds from this offering for working capital
and general corporate purposes, including expenditures for research and
development of new products, sales channel development and other corporate
purposes. In addition, we may use a portion of the net proceeds to acquire
businesses, products or technologies that are complementary to our current or
future business and product lines. We are not currently negotiating any
acquisitions and we have no agreements with any third party for any acquisition.
Pending use of the net proceeds of this offering, we intend to invest the net
proceeds in interest-bearing, investment-grade securities.

                                DIVIDEND POLICY

     We have never declared or paid any dividends on our capital stock. We
currently expect to retain future earnings, if any, for use in the operation and
expansion of our business and do not anticipate paying any cash dividends in the
foreseeable future. In addition, under our existing credit facility, we cannot
pay dividends without our bank's consent, with limited exceptions. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations -- Liquidity and Capital Resources."

                                       18
<PAGE>   19

                                 CAPITALIZATION

     The following table sets forth our capitalization and short-term debt as of
June 30, 1999 on the following three bases:

     - on an actual basis;

     - on a pro forma basis to reflect the conversion of all outstanding shares
       of our preferred stock into 13,907,399 shares of common stock effective
       automatically upon the closing of this offering; and

     - on a pro forma as adjusted basis to reflect (1) the sale of 3,500,000
       shares of common stock in this offering at the initial public offering
       price of $21.00 per share and the application of the net proceeds (after
       deducting underwriting discounts and commissions and estimated offering
       expenses), (2) the conversion of all outstanding shares of our preferred
       stock into 13,907,399 shares of common stock effective automatically upon
       the closing of this offering, and (3) the conversion of $7,994,250 of our
       convertible note into 1,045,000 shares of common stock.

     You should read this table in conjunction with our Financial Statements and
the Notes thereto and Selected Financial Data included elsewhere in this
prospectus.

<TABLE>
<CAPTION>
                                                                         JUNE 30, 1999
                                                              ------------------------------------
                                                                                        PRO FORMA
                                                               ACTUAL     PRO FORMA    AS ADJUSTED
                                                              --------    ---------    -----------
                                                                  (IN THOUSANDS, EXCEPT SHARE
                                                                      AND PER SHARE DATA)
                                                                          (UNAUDITED)
<S>                                                           <C>         <C>          <C>
Current portion of long-term obligations....................  $  1,531    $  1,531      $   1,531
                                                              --------    --------      ---------
Long-term obligations, less current portion.................    15,047      15,047          7,053
Stockholders' equity:
  Preferred stock, $0.005 par value per share: 16,500,000
     shares authorized, 13,907,399 shares outstanding,
     actual; 10,000,000 shares authorized, no shares
     outstanding pro forma and pro forma as adjusted........        69          --             --
  Common stock, $0.005 par value per share: 40,000,000
     shares authorized, 6,134,994 shares outstanding,
     actual; 40,000,000 shares authorized, 20,042,393 shares
     outstanding, pro forma; 150,000,000 shares authorized,
     24,587,393 shares outstanding, pro forma as
     adjusted(1)............................................        31         100            122
  Additional paid-in capital................................    37,283      37,283        112,735
  Deferred compensation.....................................    (2,103)     (2,103)        (2,103)
  Accumulated deficit.......................................   (32,330)    (32,330)       (32,330)
                                                              --------    --------      ---------
          Total stockholders' equity........................  $  2,950    $  2,950      $  78,424
                                                              --------    --------      ---------
          Total capitalization..............................  $ 19,528    $ 19,528      $  87,008
                                                              ========    ========      =========
</TABLE>

- -------------------------
(1) The number of shares of common stock outstanding after this offering
    excludes the following:

     - 4,356,731 shares issuable upon exercise of outstanding stock options as
       of June 30, 1999 with a weighted average exercise price of $1.81 per
       share;

     - 1,069,174 shares reserved for issuance under our Amended and Restated
       1993 Stock Plan, 1999 Director Stock Option Plan and 1999 Employee Stock
       Purchase Plan as of June 30, 1999;

     - up to 751,500 shares issuable upon conversion of the balance of our
       convertible note at a conversion price per share of $7.65; and

     - 47,849 shares issuable upon exercise of warrants outstanding as of June
       30, 1999 with a weighted average exercise price of $5.96 per share.

    For additional information regarding these shares, see "Management -- Stock
    Plans," "Certain Transactions," "Description of Capital Stock -- Warrants"
    and Note 10 of the Notes to Financial Statements.

                                       19
<PAGE>   20

                                    DILUTION

     If you invest in our common stock, your interest will be diluted to the
extent of the difference between the public offering price per share of our
common stock and the pro forma as adjusted net tangible book value per share of
our common stock after this offering. In the table below, we have calculated net
tangible book value per share by dividing the net tangible book value (total
assets less intangible assets and total liabilities) by the number of
outstanding shares of common stock.

     The pro forma net tangible book value of our company at June 30, 1999, was
$2,950,000, or $0.15 per share of common stock. Pro forma net tangible book
value per share represents total tangible assets less total liabilities, divided
by the number of outstanding shares of common stock after giving effect to the
conversion of all outstanding shares of our preferred stock into 13,907,399
shares of common stock effective automatically upon the closing of this
offering. After giving effect to the sale of the 3,500,000 shares of common
stock at the initial public offering price of $21.00 per share (less
underwriting discounts and commissions and estimated offering expenses) and
conversion of approximately $7,994,250 of our convertible note (including
accrued interest), our pro forma as adjusted net tangible book value at June 30,
1999, would be $78,424,250 or $3.19 per share. This represents an immediate
increase in the pro forma as adjusted net tangible book value of $3.04 per share
to existing stockholders and an immediate dilution of $17.81 per share to new
investors, or approximately 85% of the initial public offering price of $21.00
per share. The following table illustrates this per share dilution:

<TABLE>
<S>                                                           <C>      <C>
Initial public offering price per share.....................           $21.00
  Pro forma net tangible book value per share at June 30,
     1999...................................................  $0.15
  Accretion per share attributable to conversion of our
     convertible note.......................................   0.37
  Increase per share attributable to this offering..........   2.67
                                                              -----
Pro forma as adjusted net tangible book value per share
  after the offering........................................             3.19
                                                                       ------
Dilution per share to new investors.........................           $17.81
                                                                       ======
</TABLE>

     The following table shows on a pro forma as adjusted basis at June 30,
1999, after giving effect to the sale of the 3,500,000 shares of common stock at
the initial public offering price of $21.00 per share (before underwriting
discounts and estimated offering expenses), conversion of approximately
$7,994,250 of our convertible note (including accrued interest) and conversion
of all preferred stock into common stock for the number of shares of common
stock purchased from us, the total consideration paid to us and the average
price paid per share by existing stockholders and by new investors purchasing
common stock in this offering:

<TABLE>
<CAPTION>
                                       SHARES PURCHASED          TOTAL CONSIDERATION       AVERAGE
                                    -----------------------   -------------------------     PRICE
                                    NUMBER(1)    PERCENTAGE      AMOUNT      PERCENTAGE   PER SHARE
                                    ----------   ----------   ------------   ----------   ---------
<S>                                 <C>          <C>          <C>            <C>          <C>
Existing stockholders.............  20,042,393       82%      $ 34,038,859       29%       $ 1.70
Conversion of convertible note....   1,045,000        4          7,994,250        7        $ 7.65
New investors.....................   3,500,000       14         73,500,000       64        $21.00
                                    ----------      ---       ------------      ---
          Total...................  24,587,393      100%      $115,533,109      100%
                                    ==========      ===       ============      ===
</TABLE>

- -------------------------
(1) The number of shares of common stock outstanding after this offering
    excludes 6,225,254 shares which may be issued upon exercise of outstanding
    options and warrants or which may be issued, under our various stock
    compensation plans, and upon conversion of a portion of our convertible
    note. For additional information regarding these shares, see Footnote 1 to
    the table in "Capitalization."

                                       20
<PAGE>   21

                            SELECTED FINANCIAL DATA

     You should read the selected financial data set forth below in conjunction
with "Management's Discussion and Analysis of Financial Condition and Results of
Operations" and our Financial Statements and the Notes thereto included
elsewhere in this prospectus. The statement of operations data for the years
ended March 31, 1997, 1998 and 1999 and the balance sheet data at March 31, 1998
and 1999 are derived from, and are qualified by reference to, the audited
Financial Statements and Notes thereto appearing elsewhere in this prospectus.
The statements of operations data for the years ended March 31, 1995 and 1996
and the balance sheet data as of March 31, 1995, 1996 and 1997 are derived from,
and are qualified by reference to, financial statements not appearing in this
prospectus. The statement of operations data for the quarters ended June 30,
1998 and June 30, 1999 and balance sheet data as of June 30, 1999 are unaudited.
In the opinion of management, all necessary adjustments (consisting only of
normal recurring adjustments) have been included to present fairly the unaudited
quarterly results when read in conjunction with the audited Financial Statements
and the Notes thereto appearing elsewhere in this prospectus. Historical results
are not necessarily indicative of results that may be expected for any future
period.

<TABLE>
<CAPTION>
                                                                                                 QUARTER ENDED
                                                       YEAR ENDED MARCH 31,                        JUNE 30,
                                       ----------------------------------------------------   -------------------
                                         1995       1996       1997       1998       1999       1998       1999
                                       --------   --------   --------   --------   --------   --------   --------
                                                                                                  (UNAUDITED)
                                                           (IN THOUSANDS, EXCEPT SHARE DATA)
<S>                                    <C>        <C>        <C>        <C>        <C>        <C>        <C>
STATEMENTS OF OPERATIONS DATA:
  Net revenues.......................  $     --   $    104   $    823   $  9,811   $ 24,821   $ 5,406    $ 9,211
  Cost of revenues...................        --         68        483      7,898     18,638     4,181      5,414
                                       --------   --------   --------   --------   --------   -------    -------
  Gross margin.......................        --         36        340      1,913      6,183     1,225      3,797
                                       --------   --------   --------   --------   --------   -------    -------
  Operating expenses:
    Research and development.........       230        458      2,168      7,178     13,928     3,112      3,917
    Sales and marketing..............        --        126      1,126      2,974      5,765     1,347      1,888
    General and administrative.......        86        333        902      1,774      1,649       262        764
    Amortization of deferred
      compensation...................        --         --         --         --        547        28        322
                                       --------   --------   --------   --------   --------   -------    -------
        Total operating expenses.....       316        917      4,196     11,926     21,889     4,749      6,891
                                       --------   --------   --------   --------   --------   -------    -------
  Loss from operations...............      (316)      (881)    (3,856)   (10,013)   (15,706)   (3,524)    (3,094)
  Interest income, net of interest
    expense..........................         6         25        259        373       (226)      (21)      (142)
  Sale of electronic test equipment
    rights, net......................        --         --      1,508         --         --        --         --
                                       --------   --------   --------   --------   --------   -------    -------
  Net loss...........................  $   (310)  $   (856)  $ (2,089)  $ (9,640)  $(15,932)  $(3,545)    (3,236)
                                       ========   ========   ========   ========   ========   =======    =======
  Basic net loss per share...........                        $  (0.59)  $  (2.41)  $  (3.33)  $ (0.79)   $ (0.58)
                                                             ========   ========   ========   =======    =======
  Weighted average shares used in
    computing basic loss per
    share(1).........................                           3,551      3,995      4,789     4,468      5,626
                                                             ========   ========   ========   =======    =======
  Pro forma basic net loss per share
    (unaudited)......................                                              $  (0.91)  $ (0.21)   $ (0.17)
                                                                                   ========   =======    =======
  Weighted average shares used in
    computing pro forma basic net
    loss per share (unaudited)(1)....                                                17,594    16,789     19,533
                                                                                   ========   =======    =======
</TABLE>

<TABLE>
<CAPTION>
                                                                                                      QUARTER
                                                               YEAR ENDED MARCH 31,                    ENDED
                                                  -----------------------------------------------    JUNE 30,
                                                   1995      1996      1997      1998      1999        1999
                                                  -------   -------   -------   -------   -------   -----------
                                                                                                    (UNAUDITED)
                                                                         (IN THOUSANDS)
<S>                                               <C>       <C>       <C>       <C>       <C>       <C>
BALANCE SHEET DATA:
  Cash, cash equivalents, and short-term
    investments.................................  $   690   $ 1,729   $ 7,067   $ 4,624   $12,202     $ 8,845
  Working capital...............................      674     1,647     6,895     6,385    15,912      13,156
  Total assets..................................      772     2,108     8,825    14,942    28,598      25,274
  Long-term obligations, less current portion...       --        --        16     1,426    15,057      15,047
  Total stockholders' equity....................      710     1,859     7,820     8,169     5,659       2,950
</TABLE>

- -------------------------
(1) See Note 2 of Notes to the Financial Statements for an explanation of the
    determination of the weighted average common and common equivalent shares
    used to compute net loss per share and pro forma net loss per share.

                                       21
<PAGE>   22

                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS

     You should read the following discussion in conjunction with our Financial
Statements and the Notes thereto included elsewhere in this prospectus. The
results described below are not necessarily indicative of the results to be
expected in any future period. Certain statements in this discussion and
analysis are forward-looking statements within the meaning of the federal
securities laws. These forward-looking statements are subject to certain risks
and uncertainties that could cause actual results to differ materially from
historical results or our predictions. See "Special Note Regarding
Forward-Looking Statements."

OVERVIEW

     We are a leading provider of hardware and software products for storage
area networks, or SANs. Our SAN products are designed to leverage the
capabilities of fibre channel technology to enable companies to better manage
the growth in mission-critical data by overcoming the limitations of the
traditional captive storage architecture. We sell our SAN products, primarily
through leading original equipment manufacturers, including Hewlett-Packard
Company, Compaq Computer Corporation, Avid Technology Corporation and Data
General Corporation. We also sell our products through distribution channel
partners.

     We were founded in April 1992 and initially developed electronic test
equipment. Since October 1995, we have focused on developing fibre channel
network products that address the needs of the SAN market. In fiscal 1997, we
sold our patent rights to the electronic test equipment. Prior to fiscal 1998,
our operating activities related primarily to increasing our research and
development capabilities, designing and developing the hardware and software
products which we currently sell and staffing our administrative, marketing and
sales organizations. Since our inception, we have incurred significant losses,
and as of March 31, 1999, we had an accumulated deficit of $29.1 million, and
for the fiscal year ended March 31, 1999 our net loss was $15.9 million. As of
June 30, 1999, we had an accumulated deficit of $32.3 million and our net loss
for the quarter ended June 30, 1999 was approximately $3.2 million. We have not
achieved profitability on a quarterly or annual basis and anticipate that we
will incur net losses for the foreseeable future. We expect to continue to incur
significant sales and marketing, product development and administrative
expenses, and as a result, we will need to generate significant net revenues to
achieve and maintain profitability. Although our net revenues have grown, we may
not be able to sustain these growth rates, and we may not realize sufficient net
revenues to achieve profitability.

     We currently derive substantially all of our net revenues from sales of a
limited number of products within the same product line. During fiscal 1999,
substantially all of our net revenues were derived from sales of our hub
products. Although we plan to begin selling our Capellix switch products during
the second quarter of fiscal 2000, we expect that substantially all of our net
revenues in fiscal 2000 will continue to be generated from sales of our hub
products. We may not be successful in our efforts to diversify our product base
and introduce switch products to our customers.

     We depend on a few key customers. In fiscal 1999, approximately 84% of our
net revenues came from five customers with sales to Compaq Computer Corporation,
Digital Equipment Corporation and Hewlett-Packard Company each accounting for
more than 10% of our net revenues. For the quarter ended June 30, 1999,
approximately 76% of our net revenues came from three customers with Compaq
Computer Corporation (which now

                                       22
<PAGE>   23

incorporates all sales previously reported separately for Digital Equipment
Corporation), Hewlett-Packard Company and Bell Microproducts, Inc. each
accounting for more than 10% of our net revenues. In fiscal 1998, approximately
69% of our net revenues came from sales to two customers. While we are seeking
to diversify our customer base and expand the portion of our net revenues which
is derived from sales through various channels, we anticipate that our operating
results will continue to depend on volume sales to a relatively small number of
original equipment manufacturer customers and distribution channel partners. We
may not be successful in our efforts to diversify our customer base.

     We record product net revenues upon shipment, with the exception of sales
to several distribution channel partners whose product return rates we cannot
reasonably estimate. Where product return rates cannot be reasonably estimated,
revenue is recognized upon sell-through to the end user by the distribution
channel partner. Allowances for estimated sales returns are provided at the time
of revenue recognition.

     Our gross margins are affected by fluctuations in demand for our products,
the mix of products sold, the mix of sales channels through which our products
are sold, the timing and size of customer orders and product implementations,
new product introductions both by us and by our competitors, changes in our
pricing policies and those of our competitors, component costs, and the volume
manufacturing pricing we are able to obtain from our contract manufacturer.

     Although we enter into general sales contracts with our customers, none of
our customers are obligated to purchase any amount of our products pursuant to
these contracts. We rely on our customers to submit purchase orders for specific
quantities of our products. All of our sales contracts contain provisions
regarding the following:

     - products and pricing;

     - order dates, rescheduling and cancellations;

     - warranties and repair procedures; and

     - marketing and/or sales support and training obligations.

     Our original equipment manufacturer contracts generally contain additional
provisions regarding product technical specifications, labeling and boxing
instructions and other customization instructions. Several of our original
equipment manufacturer sales contracts contain favored pricing provisions as
well as confidentiality provisions. Two of our original equipment manufacturer
sales contracts provide the original equipment manufacturer the right to
manufacture our product in the event of a material default we are unable to cure
within a specified time period.

     Our contracts with our distribution channel partners generally contain
additional provisions for stock rotation, which provide for a right of return
for up to 10% of the value of purchases during the prior three months, to be
offset with an immediately deliverable order in an amount equal to or greater
than the stock to be rotated. For these customers, we record a sales return
reserve equal to the amount returnable. Two of our distribution channel partners
have broader rights of return. For those two distribution channel partners, we
defer recognition of revenues until their right of return has lapsed. Although
we also provide a reserve for general product returns, we have not experienced
significant product returns from any of our customers. However, our past product
return experience may not be indicative of future product return rates.

                                       23
<PAGE>   24

     We currently outsource substantially all of our manufacturing to Sanmina
Corporation, a third-party manufacturer. Our agreement with Sanmina Corporation
provides for two months of rolling purchase orders and rolling forecasts for the
nine months immediately following the purchase order period. Purchase prices are
negotiable throughout the three-year contract period. We are liable for
materials that Sanmina Corporation purchases on our behalf that we cannot use,
cannot be cancelled before receipt or are unique parts otherwise unusable by
Sanmina Corporation. The agreement restricts our ability to reschedule orders
and allows us to cancel existing orders subject to penalties of up to the total
purchase price. Sanmina Corporation provides warranties on workmanship and
pass-through warranties on component parts. Sanmina Corporation purchases most
of the key components used to manufacture our products. We obtain some of these
key components, such as our application specific integrated circuits, or ASICs,
from sole sources and other components, such as power supplies and chassis, from
limited sources. If we inaccurately forecast demand for our products, Sanmina
Corporation may be unable to provide us with adequate manufacturing capacity. In
addition, Sanmina Corporation may not be able to obtain adequate supplies of
components to meet our customers' delivery requirements. Alternatively, excess
inventories may be accumulated by Sanmina Corporation for our account. In order
to reduce the costs of sales, we anticipate that we may relocate our
manufacturing operations from Sanmina Corporation's manufacturing facility in
Santa Clara, California to its manufacturing facility in Guntersville, Alabama
during the second half of fiscal 2000. Additionally, we may consider moving the
outsourced manufacturing to other new locations or to a new contract
manufacturer. These relocations could be time consuming and expensive and there
can be no assurance that such moves would not disrupt the manufacturing of our
products. Such disruptions could cause us to lose net revenues and damage our
customer relationships.

RESULTS OF OPERATIONS

     The following table sets forth financial data for the fiscal years
indicated as a percentage of net revenues:

<TABLE>
<CAPTION>
                                                                       QUARTER ENDED
                                         YEAR ENDED MARCH 31,             JUNE 30,
                                      --------------------------    --------------------
                                       1997      1998      1999       1998        1999
                                      ------    ------    ------    --------    --------
                                                                        (UNAUDITED)
<S>                                   <C>       <C>       <C>       <C>         <C>
SUMMARY OF OPERATIONS DATA:
  Net revenues......................   100.0%    100.0%    100.0%    100.0%      100.0%
  Cost of revenues..................    58.7      80.5      75.1      77.3        58.8
                                      ------    ------    ------     -----       -----
  Gross margin......................    41.3      19.5      24.9      22.7        41.2
                                      ------    ------    ------     -----       -----
  Operating expenses:
     Research and development.......   263.4      73.1      56.1      57.6        42.5
     Sales and marketing............   136.8      30.3      23.2      24.9        20.5
     General and administrative.....   109.6      18.1       6.7       4.9         8.3
     Amortization of deferred
       compensation.................      --        --       2.2       0.5         3.5
                                      ------    ------    ------     -----       -----
          Total operating
            expenses................   509.8     121.5      88.2      87.9        74.8
                                      ------    ------    ------     -----       -----
  Loss from operations..............  (468.5)   (102.0)    (63.3)    (65.2)      (33.6)
  Interest income, net of interest
     expense........................    31.5       3.8      (0.9)     (0.4)       (1.5)
  Sale of electronic test equipment
     rights, net....................   183.2        --        --        --          --
                                      ------    ------    ------     -----       -----
  Net loss..........................  (253.8)%   (98.2)%   (64.2)%   (65.6)%     (35.1)%
                                      ======    ======    ======     =====       =====
</TABLE>

                                       24
<PAGE>   25

YEARS ENDED MARCH 31, 1997, 1998 AND 1999

Net Revenues

     We began volume shipments of our SAN product line in fiscal 1997, and
recognized $823,000 of net revenues for that year from continued sales of our
Bitstrip product hub and initial sales of our Gibraltar 10-port hub. Net
revenues increased to $9.8 million in fiscal 1998 through sales of the Bitstrip
product and our Gibraltar 10-port and 12-port products. In fiscal 1999 we began
sales of our Gibraltar 6-port hub and Denali switch and recognized $24.8 million
in net revenues. Net revenues increased in each of these years, primarily due to
a broadening of our product line, additions of new original equipment
manufacturer customers and an expansion of our sales through our distribution
channel partners.

Gross Margin

     Gross margin increased from $340,000 in fiscal 1997 to $1.9 million in
fiscal 1998 to $6.2 million in fiscal 1999. Gross margin as a percentage of net
revenues decreased from 41.3% in fiscal 1997 to 19.5% in fiscal 1998 and
increased to 24.9% in fiscal 1999. The decrease in gross margin as a percentage
of net revenues from fiscal 1997 to fiscal 1998 was primarily due to the
introduction of new products with low initial sales volumes and manufacturing
difficulties experienced by our previous contract manufacturer. The increase in
gross margin as a percentage of net revenues from fiscal 1998 to fiscal 1999 was
primarily due to higher sales volumes, resulting in economies of scale and cost
savings due to our transition to Sanmina Corporation for contract manufacturing.

     Our gross margins for sales of products manufactured by our prior contract
manufacturer were approximately 22% for the quarter ended March 31, 1998,
approximately 23% for the quarter ended June 30, 1998, and approximately 25% for
the quarter ended September 30, 1998. During the quarter ended December 31,
1998, we began shifting our manufacturing to Sanmina Corporation. Gross margins
on sales during the December 1998 quarter were lower than expected because sales
of our higher margin Bitstrip product were lower than expected and Sanmina
Corporation had not yet fully assumed all of our manufacturing obligations.
During the quarter ended March 31, 1999, Sanmina Corporation assumed all of our
manufacturing obligations, including purchasing substantially all components. We
do not believe that past cost savings are indicative of cost savings in the
future.

Research and Development Expenses

     Research and development expenses consist primarily of salaries and related
personnel expenses, fees paid to consultants and outside service providers,
material costs for prototype and test units and other expenses related to the
design, development, testing and enhancements of our products. We expense our
research and development costs as they are incurred. Research and development
expenses increased from $2.2 million in fiscal 1997 to $7.2 million in fiscal
1998 and to $13.9 million in fiscal 1999. These increases were primarily due to
additional research and development personnel, including the addition of our
strategic research and development team and our two ASIC development teams
primarily devoted to our development of the Capellix and other switch products.
As net revenues have increased, these expenses have declined as a percentage of
net revenues from 263.4% in fiscal 1997 to 73.1% in fiscal 1998 and to 56.1% in
fiscal 1999. We believe that a significant level of investment for product
research and development is required to remain competitive. Accordingly, we
expect to continue to devote substantial resources to product research and
development such that research and development expenses will increase in
absolute dollars.

                                       25
<PAGE>   26

Sales and Marketing Expenses

     Sales and marketing expenses consist primarily of salaries, commissions and
related expenses for personnel engaged in marketing, sales and customer
engineering support functions, as well as costs associated with trade shows,
promotional activities and travel expenses. Sales and marketing expenses
increased from $1.1 million in fiscal 1997 to $3.0 million in fiscal 1998 and to
$5.8 million in fiscal 1999. As net revenues have increased, these expenses have
declined as a percentage of net revenues from 136.8% in fiscal 1997 to 30.3% in
fiscal 1998 and to 23.2% in fiscal 1999. The increase in absolute dollars in
each of these years was primarily due to the hiring of additional sales and
marketing personnel and the expansion of our sales and marketing efforts. We
intend to expand our sales and marketing operations and efforts substantially,
both domestically and internationally, in order to increase market awareness and
to generate sales of our products. However, we cannot be certain that any
increased expenditures will result in higher net revenues. In addition, we
believe our future success depends upon establishing successful relationships
with a variety of channel partners. We believe that continued investment in
sales and marketing is critical to our success and expect these expenses to
increase in absolute dollars in the future.

General and Administrative Expenses

     General and administrative expenses consist primarily of salaries and
related expenses for executive, finance, accounting, information technology,
facilities and human resources personnel, recruiting expenses, professional fees
and costs associated with expanding our information systems. General and
administrative expenses increased from $902,000 in fiscal 1997 to $1.8 million
in fiscal 1998 and decreased to $1.6 million in fiscal 1999. The increase in
absolute dollars from fiscal 1997 to fiscal 1998 was primarily due to increased
staffing and associated expenses necessary to manage and support our increased
scale of operations. During fiscal 1997 and fiscal 1998, administrative services
were provided to functional departments from a central administration pool. The
decrease in general and administrative expenses in absolute dollars in fiscal
1999 was primarily due to the transfer of several employees from the general and
administrative area to other departments, such as sales, marketing,
manufacturing and research and development. As revenues have increased, these
expenses have declined as a percentage of net revenues from 109.6% in fiscal
1997 to 18.1% in fiscal 1998 and to 6.7% in fiscal 1999. We expect these
expenses to increase in absolute dollars as we add personnel and incur
additional costs related to the growth of our business, expansion of our
information infrastructure and our operation as a public company.

Amortization of Deferred Compensation

     In connection with the grant of stock options to employees, we recorded
deferred compensation within stockholders' equity of approximately $3.0 million,
representing the difference between the estimated fair value of the common stock
for accounting purposes and the option exercise price of these options at the
date of grant. We recorded amortization of deferred compensation of $547,000
during fiscal 1999. At March 31, 1999, the remaining deferred compensation of
approximately $2.4 million will be amortized as follows: $1.3 million during
fiscal 2000, $670,000 during fiscal 2001, $350,000 during fiscal 2002 and
$120,000 for fiscal 2003. The amortization expense relates to options awarded to
employees in all operating expenses categories. The amount of deferred
compensation expense to be recorded in future periods could decrease if options
for which accrued but

                                       26
<PAGE>   27

unvested compensation has been recorded are forfeited. See Note 10 of the Notes
to the Financial Statements.

Interest Income, Net of Interest Expense

     Interest income, net of interest expense related to our debt and lease
obligations, includes income from our cash investments net of expenses related
to our financing obligations. Interest income, net of interest expense totaled
$259,000 in fiscal 1997 and $373,000 in fiscal 1998. Interest expense, net of
interest income, totaled $226,000 in fiscal 1999. The increase from fiscal 1997
to fiscal 1998 was primarily due to interest income from proceeds from issuances
of our preferred stock, partially offset by increased interest charges on debt
and capital lease obligations. The interest expense, net of interest income
during fiscal 1999 was primarily due to the interest accrued but not paid in
cash on our convertible note issued in September 1998.

Income Taxes

     As of March 31, 1999, we had approximately $26.8 million of federal and
$3.3 million of state net operating loss carryforwards for tax purposes
available to offset future taxable income. Such net operating loss carryforwards
expire through 2014. We have not recognized any benefit from the future use of
loss carryforwards for these periods or for any other periods since inception
because management's estimate of the realizability of the tax benefits of the
loss carryforwards indicates that the underlying assumptions of future
profitable operations contain risks that do not provide sufficient assurance for
us to recognize such benefits currently.

THREE MONTHS ENDED JUNE 30, 1999 AND 1998

Net Revenues

     Net revenues for the quarter ended June 30, 1999 were $9.2 million, an
increase of $3.8 million, or 70%, compared with net revenues of $5.4 million for
the quarter ended June 30, 1998. The increase in net revenues from the quarter
ended June 30, 1998 to June 30, 1999 was primarily due to greater sales to
original equipment manufacturers and distribution channel partners.

Gross Margin

     Gross margins increased to $3.8 million, or 41.2% of net revenues, during
the quarter ended June 30, 1999 from gross margins of $1.2 million, or 22.7% of
net revenues during the quarter ended June 30, 1998. Our gross margin increased
primarily due to the following factors:

     - Our economies of scale increased in the quarter ended June 30, 1999
       primarily due to higher net revenues and cost savings achieved by Sanmina
       Corporation, our current contract manufacturer.

     - Approximately 28% of our net revenues came from sales to distribution
       channel customers during the quarter ended June 30, 1999 compared to
       approximately 6% of our net revenues from our distribution channel
       customer sales during the quarter ended June 30, 1998. Selling prices to
       distribution channel customers are typically higher than selling prices
       to our OEM customers.

     - During the quarter ended June 30, 1999, we sold fewer units of the lower
       margin Gibraltar GL product than in previous quarters.

                                       27
<PAGE>   28

     Gross margins achieved during the quarter ended June 30, 1999 may not be
indicative of gross margins in future quarters.

Research and Development Expenses

     Research and development expenses were $3.9 million for the quarter ended
June 30, 1999, an increase of $805,000, or 26%, over research and development
expenses of $3.1 million for the quarter ended June 30, 1998. During the quarter
ended June 30, 1999, our research and development efforts focused primarily on
the design and development of the Capellix storage switch, two new ASIC chips
and several new products and product enhancements. We expect to begin commercial
shipment of our Capellix storage switch product during the quarter ending
September 30, 1999.

Sales and Marketing Expenses

     Sales and marketing expenses were $1.9 million for the quarter ended June
30, 1999, an increase of $541,000, or 40%, over sales and marketing expenses of
$1.3 million for the quarter ended June 30, 1998. Sales and marketing expenses
in the quarter ended June 30 have historically been higher primarily due to the
Networld+Interop tradeshow in that quarter. We have added personnel to our sales
and marketing departments to facilitate growth in our net revenues and to enable
us to further develop our distribution channel through the development of sales
tools, in-depth training in technology, and sales support.

General and Administrative Expenses

     General and administrative expenses were approximately $764,000 for the
quarter ended June 30, 1999, an increase of $502,000, or 192%, over general and
administrative expenses of approximately $262,000 for the quarter ended June 30,
1998. This growth in general and administrative expense was primarily due to the
addition of new accounting, finance and information systems personnel.

Amortization of Deferred Compensation

     In connection with the grant of stock options to employees, we amortized
approximately $322,000 in deferred compensation during the quarter ended June
30, 1999. The amount of deferred compensation expense during the quarter ended
June 30, 1998 was approximately $28,000.

Interest Income, Net of Interest Expense

     Interest income, net of interest expense was approximately $142,000 for the
quarter ended June 30, 1999, an increase of $121,000, or 576%, over interest
income, net of interest expense of approximately $21,000 for the quarter ended
June 30, 1998. The increase was primarily due to interest accrued but not paid
on our convertible note issued in September 1998.

                                       28
<PAGE>   29

QUARTERLY RESULTS OF OPERATIONS

     The following table presents our operating results for each of the nine
quarters in the period ending June 30, 1999. The information for each of these
quarters is unaudited and has been prepared on the same basis as the audited
financial statements appearing elsewhere in this prospectus. In the opinion of
management, all necessary adjustments (consisting only of normal recurring
adjustments) have been included to present fairly the unaudited quarterly
results when read in conjunction with our audited Financial Statements and Notes
thereto appearing elsewhere in this prospectus. These operating results are not
necessarily indicative of the results of any future period.

<TABLE>
<CAPTION>
                                                                         QUARTER ENDED
                               --------------------------------------------------------------------------------------------------
                               JUN. 30,   SEPT. 30,   DEC. 31,   MAR. 31,   JUN. 30,   SEPT. 30,   DEC. 31,   MAR. 31,   JUN. 30,
                                 1997       1997        1997       1998       1998       1998        1998       1999       1999
                               --------   ---------   --------   --------   --------   ---------   --------   --------   --------
                                                     (IN THOUSANDS, EXCEPT AS A PERCENTAGE OF NET REVENUES)
<S>                            <C>        <C>         <C>        <C>        <C>        <C>         <C>        <C>        <C>
STATEMENTS OF OPERATIONS
  DATA:
  Net revenues...............  $   651     $ 1,573    $ 3,238    $ 4,349    $ 5,406     $ 5,851    $ 5,983    $ 7,581    $ 9,211
  Cost of revenues...........      631       1,299      2,580      3,388      4,181       4,412      4,550      5,495      5,414
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
  Gross margin...............       20         274        658        961      1,225       1,439      1,433      2,086      3,797
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
  Operating expenses:
    Research and
      development............    1,133       1,590      1,877      2,578      3,112       3,411      3,750      3,655      3,917
    Sales and marketing......      590         495        776      1,113      1,347       1,240      1,577      1,601      1,888
    General and
      administrative.........      376         414        423        561        262         301        434        652        764
    Amortization of deferred
      compensation...........       --          --         --         --         28          87        184        248        322
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
         Total operating
           expenses..........    2,099       2,499      3,076      4,252      4,749       5,039      5,945      6,156      6,891
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
  Loss from operations.......   (2,079)     (2,225)    (2,418)    (3,291)    (3,524)     (3,600)    (4,512)    (4,070)    (3,094)
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
         Total other income (expense)...     121      112     112      28       (21)        (40)       (51)      (114)      (142)
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
  Net loss...................  $(1,958)    $(2,113)   $(2,306)   $(3,263)   $(3,545)    $(3,640)   $(4,563)   $(4,184)   $(3,236)
                               =======     =======    =======    =======    =======     =======    =======    =======    =======

AS A PERCENTAGE OF NET
  REVENUES:
  Net revenues...............    100.0%      100.0%     100.0%     100.0%     100.0%      100.0%     100.0%     100.0%     100.0%
  Cost of revenues...........     97.0        82.6       79.7       77.9       77.3        75.4       76.0       72.5       58.8
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
  Gross margin...............      3.0        17.4       20.3       22.1       22.7        24.6       24.0       27.5       41.2
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
  Operating expenses:
    Research and
      development............    174.0       101.1       58.0       59.3       57.6        58.3       62.7       48.2       42.5
    Sales and marketing......     90.6        31.5       24.0       25.6       24.9        21.2       26.4       21.1       20.5
    General and
      administrative.........     57.8        26.3       13.0       12.9        4.9         5.1        7.2        8.6        8.3
    Amortization of deferred
      compensation...........       --          --         --         --        0.5         1.5        3.1        3.3        3.5
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
         Total operating
           expenses..........    322.4       158.9       95.0       97.8       87.9        86.1       99.4       81.2       74.8
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
  Loss from operations.......   (319.4)     (141.5)     (74.7)     (75.7)     (65.2)      (61.5)     (75.4)     (53.7)     (33.6)
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
         Total other income (expense)...    18.6      7.2     3.5     0.6      (0.4)       (0.7)      (0.9)      (1.5)      (1.5)
                               -------     -------    -------    -------    -------     -------    -------    -------    -------
  Net loss...................   (300.8)%    (134.3)%    (71.2)%    (75.1)%    (65.6)%     (62.2)%    (76.3)%    (55.2)%    (35.1)%
                               =======     =======    =======    =======    =======     =======    =======    =======    =======
</TABLE>

                                       29
<PAGE>   30

     Net revenues increased in each of the nine quarters ended June 30, 1999.
These quarterly increases were primarily due to the introduction of our
Gibraltar 12-port and 6-port products, increased sales of our Bitstrip and
Gibraltar 10-port products, and the addition of new original equipment
manufacturer and distribution customers. These increases may not be indicative
of future quarterly revenues.

     Gross margins have generally increased in each of the nine quarters ended
June 30, 1999 with the exception of a decrease in the quarter ended December 31,
1998. This decrease was primarily due to lower than anticipated sales of our
Bitstrip product and the transition from our prior contract manufacturer to
Sanmina Corporation. During the quarter ended December 31, 1998 Sanmina
Corporation had not assumed full turnkey manufacturing.

     Gross margins increased to $3.8 million, or 41% of net revenues, during the
quarter ended June 30, 1999 from gross margins of $1.2 million, or 22.7% of net
revenues during the quarter ended June 30, 1998. Our gross margin increased
primarily for the following reasons:

     - Our economies of scale increased in the quarter ended June 30, 1999
       through higher net revenues and cost savings achieved through Sanmina
       Corporation, our current contract manufacturer.

     - Approximately 28% of our net revenues came from sales to distribution
       channel customers during the quarter ended June 30, 1999 compared to
       approximately 6% of our net revenues from our distribution channel
       customer sales during the quarter ended June 30, 1998. Selling prices to
       distribution channel customers are typically higher than selling prices
       to our OEM customers.

     - During the quarter ended June 30, 1999, we sold fewer units of the lower
       margin Gibraltar GL product than in previous quarters.

     Gross margins achieved during the quarter ended June 30, 1999 may not be
indicative of gross margins in future quarters.

     Research and development expenses have generally increased in each of the
nine quarters ended June 30, 1999 primarily due to the addition of personnel and
costs incurred for the development of the Capellix switch and other new
products. We expect research and development costs to continue to increase in
absolute dollars.

     Sales and marketing expenses have generally increased due to our increasing
net revenues. Additionally, sales and marketing expenses in the June and
December quarters have historically been higher primarily due to the
Networld+Interop tradeshow in the quarters ended June 30, and the Comdex
tradeshow during the quarters ended December 31. We expect sales and marketing
costs to continue to increase in absolute dollars.

     General and administrative expenses increased for each of the five quarters
ended June 30, 1999. During this period of time, administrative personnel
provided functions to all departments from a centralized pool of personnel.
During the four quarters ended March 31, 1998, we transferred several employees
from the general and administrative area to other departments such as sales,
marketing, and research and development resulting in a decrease in general and
administrative costs, and a corresponding increase in research and development
and sales and marketing. During the quarter ended December 31, 1998, we moved to
a new corporate headquarters facility in northern California, incurred moving
costs and wrote off the unamortized portion of leasehold improvements from the
prior

                                       30
<PAGE>   31

facility. We increased our facility size from approximately 27,000 square feet
to approximately 53,000 square feet, increasing facility costs during the
quarters ended March 31, 1999 and June 30, 1999 over facility costs in prior
quarters.

LIQUIDITY AND CAPITAL RESOURCES

     Since inception, we have financed our operations primarily through private
sales of convertible preferred stock, the issuance of a convertible note and
equipment financings.

     In fiscal 1999, we used $15.7 million in cash for operations, an increase
of 33% from $11.8 million used in fiscal 1998. This increase was primarily due
to an increase in our net loss from $9.6 million in fiscal 1998 to $15.9 million
in fiscal 1999, partially offset by increased non-cash charges in fiscal 1999.

     In fiscal 1999, we used $1.6 million in cash from investing activities to
acquire property and equipment. In fiscal 1998, we received proceeds of $6.9
million from the sale of available-for-sale securities and used $1.4 million of
cash to acquire property and equipment.

     In addition to convertible preferred stock, we have used debt and leases to
partially finance our operations and capital purchases and plan to continue this
practice. In fiscal 1999, we generated $24.9 million in cash from financing
activities, an increase of 132.7% from the $10.7 million generated in fiscal
1998. This increase was primarily due to an increase in private sales of
convertible preferred stock and the issuance of a convertible note.

     In September 1998, we entered into a $15.0 million convertible note
agreement with Seagate Technology, Inc. Under this agreement, Seagate Technology
purchased a convertible note in the aggregate principle amount of $15.0 million,
which bears simple interest on the unpaid principal balance at a rate equal to
5.75% per annum with principal and interest maturing on September 18, 2001. We
have the option to convert any portion of the then outstanding balance of
principal and interest on this convertible note into shares of our Series G
preferred stock, or common stock after completion of this offering, at a price
of $7.65 per share.

     The agreement also provides that, without our consent, conversion of the
convertible note may not result in Seagate Technology holding more than 19.9% of
our outstanding shares of common stock. Accrued interest is converted prior to
any principal owing under this convertible note. See "Certain Transactions." In
the event of a default, as defined in the convertible note agreement, Seagate
Technology may declare all outstanding interest and principal immediately due
and payable in cash. We may, upon 30 days written notice to Seagate Technology,
prepay the convertible note in whole or in part.

     In October 1998, we converted approximately $59,000 of interest and
approximately $1.8 million of principal of the convertible note into 242,694
shares of Series G preferred stock. Upon the closing of this offering, those
242,694 shares of Series G preferred stock will convert into 242,694 shares of
our common stock. As of June 30, 1999, the total amount of outstanding principal
and accrued interest on the convertible note was $13,743,225. We intend to
convert a portion of the unpaid principal and interest on our convertible note
sufficient to maintain Seagate Technology's holdings of our common stock at
19.9%. In this prospectus we have assumed, based upon the number of shares of
our common stock outstanding as of June 30, 1999, that we will convert
approximately $7,994,250 of our convertible note into 1,045,000 shares of our
common stock. Accordingly, following the conversion of this amount, there would
be $5,748,975 of our convertible note outstanding, which would be convertible
into 751,500 shares of our

                                       31
<PAGE>   32

common stock. For a more complete discussion of the convertible note and our
agreement with Seagate Technology, see "Certain Transactions."

     In fiscal 1998 and 1999, we acquired $3.3 million in equipment under
capitalized leases. At March 31, 1999, we had $2.4 million in capitalized lease
obligations outstanding.

     In January 1998, we entered into a revolving credit agreement with a bank,
which provided for maximum borrowings of an amount not to exceed the lower of
70% of eligible accounts receivable or $5.0 million. On March 15, 1999, we
renewed this agreement, which expires on February 1, 2000. Currently, there are
no borrowings under this line of credit. Borrowings under this line of credit
are secured by all of our assets and bear interest at the bank's prime rate plus
0.5% per annum (approximately 8.25% at March 31, 1999). The agreement requires
that we maintain certain financial ratios and levels of tangible net worth and
also restricts our ability to pay cash dividends. See Note 8 of Notes to the
Financial Statements.

     Cash, cash equivalents and short-term investments totaled $8.8 million at
June 30, 1999, down from $12.2 million at March 31, 1999. Cash, cash equivalents
and short-term investments totaled $8.8 million at June 30, 1999. The decrease
from March 31, 1999 was primarily due to cash used in operations of $2.8 million
and capital expenditures of $603,000.

     Our capital requirements depend on numerous factors, including market
acceptance of our products, the resources we devote to developing, marketing,
selling and supporting our products, the timing and expense associated with
expanding our distribution channels, and other factors. We expect to devote
substantial capital resources to continue our research and development efforts,
to hire and expand our sales, support, marketing and product development
organizations, to expand marketing programs, to establish additional facilities
worldwide and for other general corporate activities. We believe that the
proceeds from this offering together with our existing cash balances, credit
facilities and cash flows expected to be generated from future operations will
be sufficient to fund our operations for at least the next 12 months. However,
we may require additional financing within this time frame and additional
funding, if needed, may not be available on terms acceptable, or at all.

YEAR 2000 READINESS

The Year 2000 Issue

     The year 2000 issue refers to the potential for disruption to business
activities caused by system failures or miscalculations which are triggered by
advancement of date records past the year 1999. For example, if software that
uses the calendar year in computations is not ready for the millennial calendar
change, it may interpret a 21(st) century date as a 20(th) century date (for
example, mistaking 2001 for 1901).

Readiness of Our Products

     We have designed our products to be ready for the year 2000 calendar
change. We represent to our customers that each hardware, software and firmware
product supplied by us will accurately process date data from, into and between
the 20(th) and 21(st) centuries and the years 1999 and 2000, including leap year
calculations, when used in accordance with the product documentation provided by
us. We also represent to our customers that upon notification of any year 2000
problems with our products, we will remedy it by product repair or replacement.

                                       32
<PAGE>   33

     We do not represent to our customers that the storage area networks and
local area networks that incorporate our products will not have problems with
year 2000 issues, since these networks incorporate hardware and software
products supplied by other companies. We cannot evaluate the readiness of our
products for year 2000 with the innumerable combinations possible with other
companies' products. We may, therefore, face claims or complaints based on year
2000 problems related to our customers' networks, even when we are not the
source of their problem. We are not aware of any such claims or complaints about
us or other companies building products for storage area networks, but we may
incur the cost of legal or other defense and explanation of our product
regardless of the merits of such claims.

Readiness of Our Systems and Facilities

     Our business may be affected by year 2000 issues. We plan to complete our
systems updates, upgrades and replacements of non-ready systems by Fall 1999.
Systems include internal hardware and software as well as external services
provided by other companies, including contract manufacturing, product
development, information processing and facility services. We will prepare
contingency plans for unexpected internal system failures and failures of
external systems. We are not currently aware of any unresolved year 2000
problems relating to any of our internal systems. We do not believe that we have
any significant systems that are not year 2000 compliant. The majority of our
software, hardware and operating systems have been acquired as new product in
the last two years. Most of it is shrink wrapped product and is still maintained
by existing vendors. We do not believe that we have any significant systems that
contain embedded chips that are not year 2000 compliant. Most of our hardware is
made of branded components and has been acquired in the last two years from
manufacturers which are still in business. We are not using legacy hardware or
software that would be more likely to have calendar issues because of its age.

Cost of Product and Internal Systems Preparation

     Based on our assessment to date, we do not expect the total cost of year
2000 preparation and remediation to be material to our business. To date, our
costs of analysis of our year 2000 readiness have not been material.

Risks

     An internal or external business disruption caused by the year 2000 issue
could interrupt our operations and damage our relationships with our customers.
An internal disruption unique to us could give a comparative advantage to our
competitors. Failure of our internal systems and critical external services to
be ready for the year 2000 could delay order processing, issuing invoices or
development and shipment of products. The cost of recovery from failures could
be significant.

     Our customers' purchasing plans could be affected by year 2000 issues if
they need to expend significant resources to fix their existing systems. This
situation could divert funds and resources otherwise available for new product
purchase. In addition, some customers may wait to purchase our products until
after the year 2000, which may reduce our net revenues in the near future.

     We are unable to determine at this time whether these or other year 2000
failures will occur and will have a material impact on our business, results of
operations, or financial condition. This inability is particularly due to the
potential scope of the year 2000 problem

                                       33
<PAGE>   34

and the inability to assure the readiness of external service providers,
including utilities, government entities and other vendors. We have not
developed, and we have no current plans to develop in the near future, a
contingency plan to deal with the effects of this worst case scenario.

RECENT ACCOUNTING PRONOUNCEMENTS

     In June 1997, the Financial Accounting Standards Board issued SFAS No. 130,
"Comprehensive Income," which we adopted in fiscal 1999. SFAS No. 130 requires
companies to report a new, additional measure of income on the statement of
operations or to create a new financial statement that has the new measure of
income on it. "Comprehensive Income" is to include amounts which have been
previously excluded from net income and reflected instead in equity.
Comprehensive loss for each of the three years ended March 31, 1999 approximated
net loss.

     In June 1997, the Financial Accounting Standards Board also issued SFAS No.
131 "Disclosures About Segments of an Enterprise and Related Information," which
we adopted in fiscal 1999. SFAS No. 131 establishes standards for disclosures
about operating segments, products and services, geographic areas and major
customers. We are organized and operate as one operating segment: the design,
development, manufacturing, marketing and selling of SAN products. During fiscal
1997, product net revenues amounted to 95% of total net revenues, in fiscal 1998
they amounted to 99%, and in fiscal 1999 they amounted to 98%. We sell our SAN
products internationally.

     In March 1998, the American Institute of Certified Public Accountants
issued Statement of Position No. 98-1 "Accounting for the Cost of Computer
Software Developed or Obtained for Internal Use," which we adopted in fiscal
1999. SOP No. 98-1 requires entities to capitalize certain costs related to
internal-use software once certain criteria has been met. The adoption did not
have a material impact on our financial position or results of operations.

     In April 1998, the American Institute of Certified Public Accountants
issued SOP No. 98-5 "Reporting on the Costs of Start-Up Activities," which we
adopted in fiscal 1999. SOP No. 98-5 requires that all start-up costs related to
new operations must be expensed as incurred. In addition, all start-up costs
that were previously capitalized must be written off when SOP No. 98-5 is
adopted. The adoption did not have a material impact on our financial position
or results of operations.

     In June 1998, the Financial Accounting Standards Board issued SFAS No. 133
"Accounting for Derivative Instruments and Hedging Activities." SFAS No. 133
requires certain accounting and reporting standards for derivative financial
instruments and hedging activities. We are subject to SFAS No. 133 since on July
1, 1999. Because we do not currently hold any derivative instruments and do not
engage in hedging activities, we do not believe that the adoption of SFAS No.
133 will have a material impact on our financial position or results of
operations.

     In December 1998, the American Institute of Certified Public Accountants
issued SOP 98-9, "Modification of SOP 97-2, Software Revenue Recognition, With
Respect to Certain Transactions." SOP 98-9 amends SOP 97-2 and SOP 98-4 by
extending the deferral of the application of certain provisions of SOP 97-2,
amended by SOP 98-4, through fiscal years beginning on or before March 15, 1999.
All other provisions of SOP 98-9 are effective for transactions entered into in
fiscal years beginning after

                                       34
<PAGE>   35

March 15, 1999. We do not expect the adoption of SOP 98-9 to have a significant
effect on our financial position or results of operations.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET INTEREST RATE SENSITIVITY

     The primary objective of our investment activities is to preserve principal
while at the same time maximizing the income we receive from our investments
without significantly increasing risk. Some of the securities that we may invest
in may be subject to market risk. This means that a change in prevailing
interest rates may cause the principal amount of the investment to fluctuate.
For example, if we hold a security that was issued with a fixed interest rate at
the then-prevailing rate and the prevailing interest rate later rises, the
principal amount of our investment will probably decline. To minimize this risk
in the future, we intend to maintain our portfolio of cash equivalents and
short-term investments in a variety of securities, including commercial paper,
money market funds, government and non-government debt securities. In general,
money market funds are not subject to market risk because the interest paid on
such funds fluctuates with the prevailing interest rate. As of June 30, 1999,
all of our investments were in money market funds. See Note 2 of the Notes to
the Financial Statements.

     We have operated primarily in the United States and all sales to date have
been made in U.S. dollars. Accordingly, we have not had any material exposure to
foreign currency rate fluctuations.

                                       35
<PAGE>   36

                                    BUSINESS

OVERVIEW

     We are a leading provider of hardware and software products that enable the
creation of networks made up of computers and data storage devices which have
become known as "storage area networks," or SANs. We helped pioneer the
development of SANs by taking the concepts used to connect computers to one
another in local area networks and applying those same concepts to the
connection of computers and data storage devices. Our SAN products are based on
fibre channel technology, a set of specifications designed to enable computing
devices to exchange large amounts of data. We have designed our products to
leverage the capabilities of fibre channel technology to enable companies to
better manage the growth of mission-critical data by overcoming the limitations
of the traditional captive storage architecture, and creating a foundation for
data centralization.

     We believe that we have developed the most comprehensive line of products
in the SAN industry. These products include (1) the Bitstrip active hub, a
gigabit fibre channel hub, which provides a cost-effective solution for
entry-level SANs; (2) the Gibraltar line of hubs, a managed hub designed to
provide centralized management of a SAN; (3) the Denali area switch, a fibre
channel switch to support data backup without a server; (4) the Capellix chassis
switch, a switch that can be configured to perform multiple functions by adding
hardware; and (5) the Ventana SAN Manager, a SAN management software application
which provides monitoring and control of SAN devices.

     We began commercial shipments of our SAN products in October 1995. Our
primary customers include original equipment manufacturer customers and
distribution channel partners. Our original equipment manufacturer customers
include Hewlett-Packard Company, Compaq Computer Corporation, Data General
Corporation and Avid Technology, Inc. Additionally, we have developed a two-tier
distribution channel comprised of distributors and resellers including Andataco,
Inc., Bell Microproducts, Inc., Decision Support Systems, Inc., Merisel, Inc.,
Rorke Data, Inc. and Tokyo Electron Limited. According to International Data
Corporation (January 1999), our installed base of fibre channel networking ports
represents the largest share of the total hub and switch ports shipped in the
two years ended December 31, 1998. We believe we have the largest installed base
of SAN networking ports.

     We believe that the SAN infrastructure created by our network products
forms the foundation for a new data management architecture. Just as the
infrastructure created by local area networks, or LANs, formed a platform for
the development of client-server computing, we believe that the SAN
infrastructure has the potential to enable the development of a distributed data
management architecture. We plan to leverage our technological expertise, our
market leadership and the strength of our partnerships to drive the development
of this architecture and create new opportunities for our business.

INDUSTRY BACKGROUND

Growth of Enterprise Data

     The volume of data generated in today's business environment continues to
grow at a significant rate. International Data Corporation (September 1998)
estimates that multiuser disk storage grew from approximately 10,000 terabytes
in 1994 to approximately

                                       36
<PAGE>   37

116,000 terabytes in 1998, and will reach approximately 1,400,000 terabytes in
2002. This growth in the volume of enterprise data has been fueled by a number
of factors, including:

     - the emergence and rapid growth of data-intensive applications such as
       e-commerce, online transaction processing, web-serving, digital video and
       other multimedia applications and enterprise resource planning;

     - the increasing importance of digital information as a strategic business
       asset;

     - the need for redundant depositories of data to enable continuous access;

     - advances in storage technology and the resulting decline in the cost of
       storage capacity; and

     - a trend toward distributing data in the enterprise client-server
       environment.

Traditional Captive Storage Architecture

     The growth of the amount of enterprise data has resulted in a corresponding
need to manage, share, back-up and make data widely accessible. This need has
traditionally been addressed by connecting individual high-performance
computers, known as servers, to dedicated storage devices. This approach results
in a "captive" storage architecture where storage devices are connected to only
one server, and not to any of the other servers utilized by an enterprise. These
connections are made through the use of the small computer system interface, or
SCSI, technology.
  [GRAPHIC: Graphical representation of the traditional storage architecture.]

     The traditional captive storage architecture has several significant
limitations, including:

     - Capacity Constraints.  Small computer system interface technology cannot
       typically support more than 15 individual disk drives. In general, to add
       additional storage capacity, additional servers must be added, which is
       costly and inefficient.

     - Performance Constraints.  The bandwidth, or rate at which data can be
       transmitted, of commercially-available small computer system interface
       technology is fixed at 40 or 80 megabytes per second. Accordingly, the
       addition of a new storage

                                       37
<PAGE>   38

       device may not result in a proportional increase in performance because
       the available bandwidth may be fully utilized by the amount of data
       already flowing between the server and the existing storage devices.
       Further, the addition of new storage devices may actually degrade
       performance as more devices compete to utilize available bandwidth.

     - Lack of Management.  Small computer system interface technology does not
       have any inherent capability to manage connections, storage or data. As a
       result, servers are burdened with management tasks. This is cumbersome
       because there is no centralized monitoring and control. This is also
       inefficient because server bandwidth is spent managing data and not
       serving clients, generating a need for more servers. Because of this lack
       of centralized management, we believe the cost of managing storage
       exceeds the cost of the storage devices themselves.

     - Lack of Availability and Disaster Tolerance.  In general, a small
       computer system interface-connected device can only be accessed by its
       dedicated server. If the server becomes unavailable for any reason, such
       as a breakdown of the server or a disaster affecting the entire data
       center, data on its connected storage devices becomes inaccessible. This
       lack of fault and disaster tolerance makes the enterprise vulnerable to
       server or data center failures. Because the small computer systems
       interface standard typically limits the distance between servers and
       storage devices to 25 meters, redundant storage devices in remote
       locations are generally not practical or cost-effective. As a result,
       sustained data availability in a captive storage architecture following a
       system failure or disaster is difficult to achieve.

Development of Fibre Channel

     In 1994, the American National Standards Institute approved the fibre
channel standard as an open standard technology specifically for high
performance, input/output intensive environments such as server-storage
connectivity. Commercially available fibre channel products offer over 1 gigabit
per second of bandwidth. Multiple fibre channel links of up to 10 kilometers
each may be interconnected to enable long distances between servers and storage
devices. Fibre channel technology also enables hundreds of storage devices and
servers to be interconnected.

The Need for a New Storage Architecture

     Despite the greater bandwidth and capacity offered by fibre channel, fibre
channel alone does not address the data management, data availability and
disaster tolerance issues resulting from the growth of enterprise data. A new
storage architecture comprised of a new model for connecting storage devices
with servers and a foundation for distributing data management applications is
needed.

THE GADZOOX SOLUTION

     We sell hardware and software products that create storage area networks,
or SANs, for the intelligent management of enterprise data. To address
limitations of the traditional captive storage architecture, we pioneered the
development of the SAN by leveraging the capabilities of fibre channel to create
a new network architecture that is designed to enable multiple storage devices
to be connected to multiple servers. We believe the combination of our technical
innovation and our market vision has influenced and will continue to impact the
evolution of the SAN market. According to International Data Corporation
(January 1999), our installed base of fibre channel networking ports represents
the largest share of the total hub and switch ports shipped in the two years
ended December 31, 1998. We believe we have the largest installed base of SAN
networking ports.

                                       38
<PAGE>   39

     We developed some of the first storage area network devices and introduced
products that are designed to manage data from within a SAN without relying on
servers. Our products include an active hub, a hub with intelligent diagnostics,
an area switch and a chassis switch for SANs. Utilizing the proven principles of
centralized network management for local area networks, we were also the first
to deliver managed network devices and management software for SANs. These
devices are designed to centralize the monitoring, diagnosis and control of a
storage area network.

     Our storage area network solution is based on the following topology:
        [GRAPHIC: Graphical representation of the topology of the SAN.]

     Our storage connectivity products address the limitations of traditional
captive storage architectures in the following ways:

Capacity Scalability

     Our hub, switch and SAN management products are designed to allow users to
scale servers and storage capacity independently to meet their individual needs.
For example, our proprietary PerfectPort feature is designed to enable the
reliable linking of multiple hubs and switches to scale storage capacity. As a
result, our products help users realize fibre channel's ability to connect
hundreds of storage devices or subsystems to multiple servers. This is more
cost-effective than the traditional captive storage architecture, which requires
businesses to purchase one or more servers to facilitate the addition of storage
devices.

Increased Performance

     Our products are designed to provide access to data at speeds exceeding 1
gigabit per second. In addition, our Capellix switch has greater port capacity
and a faster switching backplane than the 8-port and 16-port SAN switches
currently available in the market. This enables higher performance and more cost
effective scaling because more devices can be connected through a single
Capellix switch with higher available bandwidth than can be connected through
existing switches. Our products leverage the multiple server/multiple storage
device topology of SANs to allow multiple users simultaneous access to stored
data over independent paths within the SAN. This permits faster access to data
by more users than is possible in a traditional captive storage architecture.

                                       39
<PAGE>   40

Manageability

     Our management products are designed to provide centralized monitoring and
control of storage and networking devices in a distributed SAN environment. For
example, our proprietary management features and Ventana SAN Manager software
are designed to minimize downtime by monitoring, detecting, isolating and
troubleshooting faults as they occur. Our products leverage the SAN environment
to facilitate the sharing of storage resources, such as tape backup devices and
disk arrays, or disk drives grouped together to provide added storage capacity.
Our products also leverage the SAN environment to reduce the total cost of
ownership of storage networks. We believe that centralized management results in
a total cost of ownership model where the cost of data management is
significantly less than the cost of the storage devices themselves.

Data Availability and Disaster Tolerance

     Our products are designed to further enhance SANs by allowing network
administrators to specify primary and secondary data transmission pathways known
as failover links. SANs are substantially more fault tolerant than the
traditional captive storage architecture because access to storage devices on a
SAN is independent of any single server. As a result, even if one or more
servers fail, data stored on SAN storage devices is still accessible by other
servers connected to the SAN. In addition, because fibre channel allows devices
to be located farther apart physically than small computer system interface
technology, storage devices on the same SAN can be placed in remote locations to
increase disaster tolerance.

     Our products offer the following additional benefits and features:

Interoperability

     Our products leverage the fibre channel arbitrated loop protocol. This
protocol is the most widely-deployed fibre channel standard. As a result, we
believe our products are compatible with substantially all major fibre channel
servers and storage subsystems. This interoperability allows customers to
install our products into their existing small computer system interface
technology, which allows them to better preserve their investment in the
equipment that they already own.

Modular Scalability

     The modular design of our products allows users to scale and upgrade the
capabilities of their SANs as required. Our customers are able to meet their
evolving storage and performance needs through the incremental installation or
upgrade of hubs, switches and SAN management features.

Increased Network Stability

     Our proprietary Reflex feature is integrated in all of our products and is
designed to automatically bypass faulty links and devices to help ensure network
stability. Our proprietary PerfectPort feature is designed to increase the
reliability of each fibre channel link to our hub or switch products. This
enhances the reliability of the SAN. In addition, the use of PerfectPort in each
link enables all devices in the SAN to be interconnected without limitation in
the number of network devices or the distance between SAN devices.

Platform for Advanced Data Management

     Our products are designed to allow storage devices to share data without
the intervention of a server. This feature creates a platform that helps enable
third-party applications such as serverless backup, an application that allows
backups to be performed

                                       40
<PAGE>   41

over a SAN without a server. Serverless backup helps alleviate servers and local
area networks of backup traffic so they can more effectively serve clients.

STRATEGY

     Our objective is to maintain and extend our leadership position in the SAN
market by continuing to deliver enhanced and innovative network products. Key
elements of this strategy include the following:

Leverage Technological Leadership

     We intend to leverage our technological leadership and expertise to
introduce high-quality, cost-effective products and product enhancements to meet
the needs of the evolving SAN market. We have significant technological
expertise in both storage and networking. Several of our employees were involved
in the establishment of the original fibre channel standards, which allowed us
to have early insight into the potential of fibre channel as the enabling
technology for SANs. We believe that this technological expertise has been
instrumental in developing our SAN architecture and introducing innovative
products. We intend to continue to devote substantial resources to our product
development efforts.

     We remain committed to advancing the standardization of SAN capabilities
through our participation in industry standards organizations, trade groups and
strategic partnerships. For example, in July 1999, we joined the Open Standards
Fabric Initiative, a group of SAN developers including Ancor Communications,
Inc., Brocade Communications Systems, Inc., Gadzoox Networks, Inc., McData
Corporation and Vixel Corporation, focused on the development and deployment of
industry standards to help enable fibre channel switch interoperability. Today,
our technical personnel are members of more than 11 standards organizations and
chair four working groups that are developing new open standards.

Develop Products Consistent with SAN Evolution

     We develop and introduce products timed to the development of the SAN
market. Recognizing that the SAN architecture was a new storage connectivity
paradigm, we targeted our initial product development efforts to the
introduction of active hubs as the basic building block of SANs. As the SAN
architecture began to gain market acceptance, we introduced managed hubs and SAN
management software to allow centralized monitoring and control in larger
distributed environments. We then introduced area switches that support
applications such as remote backup, serverless backup and remote SAN to SAN
connectivity. In May 1999, we announced the launch of Capellix, our chassis
switch. When configured with storage switch plug-in modules, the Capellix switch
is designed to provide highly scalable switching capabilities without the need
to change other elements of the SAN such as servers and storage devices.

     In preserving compatibility with existing SAN devices, the need to
reengineer systems to accommodate the more complex fibre channel fabric protocol
is diminished. By focusing on the delivery of products consistent with SAN
evolution, we believe that we have been a significant factor in the emergence of
the SAN market. As the SAN architecture gains wider market acceptance, we intend
to continue to introduce products designed to enable greater capabilities.

Leverage Modular Architecture

     We intend to continue to design products that can be upgraded to provide a
broad range of features, enhancements and services to our growing installed
base. This represents

                                       41
<PAGE>   42

a significant opportunity because we believe that we have the largest installed
base of SAN ports. The modular design of our products allows users to scale and
upgrade the capabilities of their SANs as required. Our products serve as a
foundation that facilitates growth by supporting downloadable agents, "plug-in"
expansion modules and upgradable software applications.

Develop Data Management Architecture

     We plan to leverage the SAN infrastructure to develop a new data management
architecture. Although the SAN architecture addresses a number of problems
resulting from the growth of enterprise data, we believe that its role will
continue to evolve over time. Similar to the way that the local area network
architecture evolved from a connectivity method for the sharing of data and
printers into an infrastructure that enabled the advent of client-server
computing, we believe the SAN architecture holds the potential of enabling
further changes in the way data is managed. By eliminating the dependency
between individual servers and the access to storage, the SAN architecture
enables the removal of data management applications from the server. In doing
so, server processing capacity can be applied to business critical applications
while data management functions are distributed within the SAN infrastructure,
thereby creating a distributed data management environment.

     We believe that the improvements in reliability and security resulting from
a distributed data management environment can enhance overall data availability.
Correspondingly, the elevated role of an intelligent SAN infrastructure can
result in higher-value SAN product segments. To influence these evolutionary
steps, we plan to work with industry standards organizations, original equipment
manufacturer customers, distribution channel partners and strategic partners to
develop, standardize and promote a distributed SAN-based data management
architecture.

Focus on Key Original Equipment Manufacturer Customers and Expand Distribution
Channel

     We intend to continue to focus on our original equipment manufacturer
customer relationships and to expand distribution channels to develop new
markets. We believe that by continuing to partner with leading original
equipment manufacturer customers, we are well-positioned to introduce new
products and develop new markets. Our original equipment manufacturer customers
currently include the following:

<TABLE>
<S>                                 <C>
Compaq Computer Corporation         Fujitsu Limited
Hewlett-Packard Company             Hitachi Limited
Data General Corporation            Groupe Bull, S.A.
Avid Technology Corporation         MTI Technology Corporation
NEC Limited
</TABLE>

     While our original equipment manufacturer customers have accounted for the
majority of our net revenues, we believe that our success depends in part on the
successful creation of an open market channel through distributors and
resellers. To this end, we have developed a network of over 60 leading
distributor and reseller partners in 15 countries. We offer comprehensive
training and marketing program support to our partners through our Gadzoox
Associates in Networking (GAIN) program. We intend to enter into agreements with
additional distributors and resellers, both in the United States and abroad, to
increase our geographic coverage and address new vertical markets. We expect
that sales through our distribution channels will constitute an increasing
portion of our total sales.

                                       42
<PAGE>   43

Work Closely with Strategic Partners and Industry Alliances

     We intend to continue working closely with leaders in the storage,
networking and computing industries to develop new and enhanced SAN products. We
believe that establishing strategic relationships with technology partners is
essential to facilitate the efficient and reliable integration of their
capabilities into SAN solutions. To this end, we have developed strategic
relationships and industry alliances with leading technology companies,
including the following:

ATL Products, Inc.
  (data backup applications)
Compaq Computer Corporation
  (storage management)
EMC Corporation
  (Sponsor of FibreAlliance for   Internet Engineering Task
  Force standards)
Exabyte Corporation
  (data backup applications)
Legato Systems, Inc.
  (data backup applications)
Microsoft Corporation
  (server clustering and web-based
  management)
Seagate Technology, Inc.
  (storage device interface
  technologies)
Sun Microsystems, Inc.
  (storage management architecture)
Veritas Software Corporation
  (storage management architecture)

Employ Reusable Elements

     Our products incorporate reusable application specific integrated circuits
(ASIC) cores and firmware agents, or small software applications used to carry
out specific functions. This allows us to accelerate time-to-market, reduce
development costs and leverage interoperability with existing products. We
intend to continue developing reusable elements and leverage them in order to
quickly respond to changes in market requirements.

PRODUCTS

     We offer a comprehensive line of products, consisting of SAN hubs, switches
and management software. Our products are designed to address the needs of our
existing and potential customers and enable the adoption and growth of SANs for
a broad range of markets and applications.

Network Products

     Our line of network products currently includes active hubs, managed hubs,
area switches and chassis switches. We believe that our product line is the most
comprehensive in the SAN market. Designed as a set of modular building blocks,
our products enable the cost-effective installation, scaling and extension of
SAN capacity, performance and management capabilities.

                                       43
<PAGE>   44

     The following table summarizes the key features and benefits of our
networking products:

<TABLE>
<C>       <S>              <C>             <C>                                       <C>                                      <C>
          ------------------------------------------------------------------------------------------------
                           FIRST
                           COMMERCIAL      DESCRIPTION                               BENEFITS
          PRODUCT NAME     SHIPMENT
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>

     ENTRY-LEVEL HUB

<TABLE>
<C>       <S>              <C>             <C>                                       <C>                                      <C>
                                           - Gigabit fibre channel hub               - Enables a cost-effective solution for
                                           - 9-port active hub                         entry-level SANs
          Bitstrip         October 1995                                              - Compact, simple design enhances ease
                                                                                       of installation and use
          ------------------------------------------------------------------------------------------------
                                           - Entry-level managed hub                 - Enables cost-effective centralized
          Gibraltar GL     May 1998        - 6-port managed hub                        management of work-group environments
                                                                                     - Management via Ventana
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>

     HIGH-END HUB

<TABLE>
<C>       <S>              <C>             <C>                                       <C>                                      <C>
                                           - Managed hub                             - Enables efficient scalability for
          Gibraltar C/XM   February 1997   - 10-port managed hub                       enterprise environments
                                                                                     - Management via Ventana
          ------------------------------------------------------------------------------------------------
                                           - Modular managed hub                     - Provides modular management and
                                           - 12-port managed hub                       scalability for high-capacity
          Gibraltar GS     August 1997                                                 enterprise environments
                                                                                     - Management via Ventana
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>

     ENTRY-LEVEL SWITCH

<TABLE>
<C>       <S>              <C>             <C>                                       <C>                                      <C>
                                           - Switch that supports embedded backup    - Protocol compatibility with existing
                                             agents for serverless backup              SAN devices enhances ease of
                                           - 3-port area switch                        installation
          Denali GM        September 1998                                            - Supports remote backup and mirroring
                                                                                       topologies to enhance disaster
                                                                                       tolerance
                                                                                     - Management via Ventana
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>

     HIGH-END SWITCH

<TABLE>
<C>       <S>              <C>             <C>                                       <C>                                      <C>
                                           - Multi-protocol chassis switch           - High bandwidth backplane enables more
                                           - Modular chassis-based design              effective scalability than 8-port or
                                           - Scalable from 6 ports to 34 ports         16-port switches
                                           - 28-gigabit per second switching         - Designed to be integrated without
                                             backplane                                 reengineering or changes to existing
          Capellix              (1)        - Innovative, standards- based storage      devices
                                             switch technology                       - "Plug-in" modules provide
                                           - Supports multiple fibre channel and       configuration flexibility
                                             networking protocols through protocol   - Modular hardware and agent design
                                             plug in modules                           offers upgradability and extensibility
                                                                                     - Management via Ventana
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>

(1) Capellix is currently in Beta evaluation with several of our key original
    equipment manufacturer partners. We expect to begin commercial shipments in
    the third calendar quarter of 1999. However, we cannot assure that shipments
    of Capellix will begin in this timeframe.

                                       44
<PAGE>   45

Management Products

     Our modular, upgradable management products are designed to enable users to
deploy management capabilities as required and enhance the ability to maintain
compliance with future management standards. To minimize the requirement for
multiple connections from managed hubs and switches to a management console, our
products employ our proprietary IntraCom proxy management system. Unlike other
products that impose distance limitations or require multiple connections, our
proxy management system is designed to enable a single managed "master" device
to manage other "slave" devices over existing fibre channel links without
impacting the flow of data.

     The following table summarizes the key features and benefits of our
management products:

<TABLE>
<CAPTION>
          -------------------------------------------------------------------------------------
                             FIRST
                           COMMERCIAL
          PRODUCT NAME      SHIPMENT   DESCRIPTION                BENEFITS
- -----------------------------------------------------------------------------------------------
<C>       <S>              <C>         <C>                        <C>                       <C>
</TABLE>

     MANAGEMENT APPLICATION

<TABLE>
<C>       <S>              <C>         <C>                        <C>                       <C>
                                       - SAN management appli-    - Centralizes network and
                                         cation                     data management
                                       - Monitors, detects,       - Enhances data
                                       isolates and               availability
                                       troubleshoots faults as
          Ventana SAN                    they occur               - Designed to integrate
           Manager          May 1997                              into enterprise platforms
                                                                   such as OpenView,
                                                                   Unicenter, and Tivoli
                                                                  - Provides intuitive
                                                                    graphical management
                                                                    interface
- -----------------------------------------------------------------------------------------------
</TABLE>

     MANAGEMENT MODULE

<TABLE>
<C>       <S>              <C>         <C>                        <C>                       <C>
                                       - Management module for    - Converts any Gibraltar
                                         Gibraltar GL and GS        GS/GL hub into an
          Gibraltar                     hubs                       IntraCom proxy "master"
           IntraCom
           Management      April 1998  - Field installable and    - Allows addition of SAN
            Module                       upgradable                 management as required
                                                                  - Management via Ventana
- -----------------------------------------------------------------------------------------------
</TABLE>

                                       45
<PAGE>   46

CUSTOMERS

     We began commercial shipment of our SAN products in fiscal 1996, and as of
June 30, 1999 have shipped products to over 130 organizations in 15 countries.

Original Equipment Manufacturer Customers

     Our primary customers are original equipment manufacturers. The following
is a list of our top five original equipment manufacturer customers based on net
revenues in fiscal 1999:

<TABLE>
<S>                                 <C>
Hewlett-Packard Company             Digital Equipment Corporation
Compaq Computer Corporation         Avid Technology Corporation
Data General Corporation
</TABLE>

     In fiscal 1999, Hewlett-Packard Company's Enterprise Storage Solution
Division represented 28% of our net revenues, Compaq Computer Corporation
represented 15% of our net revenues and Hewlett-Packard Company's Network Server
Division represented 14% of our net revenues. In fiscal 1998, Hewlett-Packard
Company's Enterprise Storage Solution Division represented 58% of our net
revenues, Compaq Computer Corporation represented 5% of our net revenues and
Hewlett-Packard Company's Network Server Division represented less than 1% of
our net revenues.

Distribution Channel Partners

     Our other customers include distribution channel partners comprised of
distributors and resellers. Our top four distribution channel partners based on
net revenues in fiscal 1999 were as follows:

<TABLE>
<S>                                 <C>
Bell Microproducts, Inc.            Ideal Hardware plc
Tokyo Electron Limited              Itochu Limited
</TABLE>

     In addition, we have recently shipped products to distributors and
resellers such as Merisel, Inc., Andataco, Inc., Cranel, Inc. and Agate
Technology Pty Limited.

SALES, MARKETING AND CUSTOMER SERVICE

     Our sales and marketing strategy is focused on the development of the SAN
market through relationships with original equipment manufacturer customers and
distribution channel partners. By maintaining a balance of both of these
indirect models, we believe that we can leverage each of their strengths to help
the market evolve and to enhance our ability to address a large end-user base.

     As of June 30, 1999, our sales and marketing organization consisted of a
total of 31 people, including field sales representatives, systems engineers,
applications engineers, customer service personnel, product marketing, product
management, channel marketing, marketing communications and market research
personnel. Our field sales personnel are located in Austin, Texas, Boston,
Massachusetts, Houston, Texas and Swallowfield, England.

Original Equipment Manufacturers

     Historically, we have focused on sales to original equipment manufacturer
customers because we believed that they were most capable of influencing the
development of the early SAN market. We believe that by partnering with leading
original equipment

                                       46
<PAGE>   47

manufacturer customers, we will continue to be well-positioned to introduce new
products and develop new markets. We work closely with our original equipment
manufacturer customers as we develop new products and rely on these original
equipment manufacturer customers for market feedback.

     Our original equipment manufacturer focus targets the manufacturers of Unix
and Windows NT servers and high-end disk and tape storage subsystems. Original
equipment manufacturer customers have been a key to our growth in the various
stages of the emerging market and have represented a significant portion of our
revenues. We believe that this is largely due to the ability of our original
equipment manufacturer customers to deliver complete, factory-configured
solutions, which are installed and serviced by their dedicated technical support
organization. Even as the technology of a given solution matures and becomes
suitable to transition to an open market integration model, the evolutionary
nature of the SAN market should enable us to continue to present our original
equipment manufacturer customers with the opportunity to integrate and deploy
new capabilities as they are developed. To help ensure the successful deployment
of these capabilities, we plan to continue to strengthen our original equipment
manufacturer customer relationships and focus on the advancements of technology
and standards.

Distribution Channel Partners

     As the SAN market has matured, we have developed a two-tier distribution
channel that is comprised of distributors and resellers. We believe that our
channel, consisting of over 60 partners in 15 countries as of June 30, 1999, is
one of the largest in the SAN market. We believe that as the market for SANs
matures, open-market sales through distributors will represent an increasing
percentage of our sales.

     In addition to delivering more mature enterprise applications and solutions
to the open market, distributors enable us to more effectively pursue a number
of vertical markets. Vertical markets and applications such as e-commerce,
Internet service providers, digital video, digital publishing, oil and gas
exploration and medical imaging are targets of our channel partners.

     In October 1998, we announced the launch of a two-tier distribution
marketing program. Our Gadzoox Associates in Networking (GAIN) program addresses
the SAN market development challenges and opportunities. By providing our
partners with a comprehensive set of sales tools and in-depth training in
technology, products, interoperability and applications, we believe that we
enhance their ability to identify sales opportunities and successfully deploy
solutions. In addition to partner development activities, we also actively work
on end-user education. With the goal of generating awareness and end-user demand
for SAN solutions, we have participated in a number seminars with partners such
as ATL Products, Inc., Data General Corporation, Exabyte, Inc., Hewlett-Packard
Company, Legato Systems, Inc., Meta Group, Inc., Microsoft Corporation, Seagate
Software, Inc., Veritas Software Corporation and Seagate Technology, Inc. We
plan to continue these educational seminars in conjunction with our channel
partners and strategic partners as an important component of the GAIN program.

Customer Service

     Our customer service organization provides product and technical support to
our original equipment manufacturer customers and distribution channel partners.
Through our indirect sales model and our partner training programs we minimize
the need for a large

                                       47
<PAGE>   48

end-user support organization. We provide direct self-service support for our
products through our website. As of June 30, 1999, our customer service
organization included two full-time employees. We plan to augment that staff as
required in the future.

TECHNOLOGY

     We believe that we possess a high level of multi-disciplinary technological
expertise, which we utilize in designing our products. This expertise includes
fibre channel technology, local area network and wide area network technologies,
core ASIC design, system design and software design. We believe that our
expertise in these technologies provide us with competitive advantages in
time-to-market, cost-to-market, interoperability and product capabilities.

Fibre Channel and Other Networking Technologies

     Fibre channel has been adopted by and is being supported by most major
computer and storage device manufacturers including International Business
Machines Corporation, Sun Microsystems, Inc., Hewlett-Packard Company, Compaq
Computer Corporation, Seagate Technology, Inc. and EMC Corporation.

     There are two main industry standards for the fibre channel protocol: fibre
channel arbitrated loop (FC-AL) and fibre channel switched fabric (FC-SW),
commonly known as "Fabric." Based on the cost-effective nature and wide industry
deployment of the fibre channel arbitrated loop protocol, we elected to base the
design of our initial hub and switch products on that standard. As the needs of
the market evolve and as more third-party products are developed to interoperate
with other protocols, including Fabric, we plan to introduce products and
modular enhancements that support these protocol standards. As fibre channel
standards are enhanced and new industry standards are developed, we expect to
contribute to these developments by leveraging our technical expertise in areas
such as small computer system interface technology, next generation input/output
(NGIO), ethernet, asynchronous transfer mode (ATM) and transmission control
protocol/Internet protocol (TCP/IP).

     We believe that knowledge in fibre channel technology is critical in
achieving and maintaining a leadership position. We employ a number of
technologists that have been significant contributors in the development and
standardization of fibre channel. Based on their expertise, we believe that we
possess insight and understanding of the capabilities and limitations of the
technology.

Core ASIC Design

     We design our own core ASICs and employ personnel with expertise in
semiconductor process and design methods. Our proprietary ASICs are manufactured
using gallium arsenide (GaAs) and complementary metal-oxide semiconductor (CMOS)
technologies. We have successfully designed proprietary GaAs ASICs clocked at
over 1 gigahertz. We have a strategic and business partnership with GaAs foundry
Vitesse Semiconductor, Inc. Our CMOS ASIC staff possesses expertise in ASIC
architecture, design and test. We have a CMOS foundry relationship with LSI
Logic Corporation.

System Design

     We employ our own computer aided design (CAD) engineers and design our
printed circuit boards (PCBs). Our system design team has expertise in the
containment of high-frequency electromagnetic interference (EMI), which is
inherent in high-speed networking

                                       48
<PAGE>   49

devices. We have expertise in chassis design, including design for
manufacturability, testability, usability, reliability and low cost.

Software

     As of June 30, 1999, our engineering staff included 16 software engineers
with expertise in embedded firmware, distributed agents and graphical user
interface technologies. The team has experience in programming for several
microprocessor and operating environments. We have considerable experience in
software implementation to support fibre channel protocol standards such as
fibre-channel physical layer (FC-PH), fiber-channel arbitrated loop (FC-AL),
small computer system interface over fibre channel (FCP), fibre-channel fabric
loop attach (FC-FLA), fibre channel general services (FC-GS) and fibre-channel
switch (FC-SW). We have also demonstrated development capabilities in
proprietary and standard SAN management protocols.

     Our team also possesses expertise in the areas of graphical user interface
software and network management middleware. We employ personnel with expertise
in a variety of application development environments and tools. Our graphical
user interface development efforts focus on the Microsoft Windows(R) family of
operating systems, as well as platform-independent applications, through the
Java programming environment.

MANUFACTURING

Contract Manufacturing

     Our manufacturing strategy focuses on the use of contract manufacturing
sites for the material procurement, assembly, test, packaging, warehousing and
shipment of our products to our customers. Based on its strength in the volume
manufacture of high-speed data networking equipment, we selected Sanmina
Corporation as our contract manufacturing partner. Using a contract manufacturer
allows us to reduce costly investment in manufacturing capital and inventory
warehousing. To reduce our cost of sales, we anticipate that we may relocate our
manufacturing operations to Sanmina Corporation's manufacturing facility in
Guntersville, Alabama during the second half of fiscal 2000. In the future we
may need to find a new contract manufacturer that can manufacture our products
in higher volume and at a lower cost. As our needs and the needs of our
customers continue to evolve, we plan to reassess our manufacturing requirements
on a periodic basis and address changes as we deem necessary. See "Risk
Factors -- We will be unable to manufacture or sell our products if our sole
product manufacturer is unable to meet our manufacturing needs."

     While our contract manufacturer manages material procurement for the
majority of the components that are incorporated in our products, we continue to
manage the evaluation and selection of certain key components. These components
include our proprietary ASICs, power supplies, chassis and optical transceivers.
In addition to the management of key components, our internal manufacturing
expertise is focused on product testability, manufacturability and the transfer
of products from development to manufacturing.

     Although we use standard parts and components for our products where
possible, we currently purchase several key components used in the manufacture
of our products from single or limited sources. Our principal single source
components include ASICs, optical transceivers and power supplies. See "Risk
Factors -- Because we depend on sole source

                                       49
<PAGE>   50

and limited source suppliers for key components, we are susceptible to supply
shortages that could adversely affect our operating results."

ISO 9001

     In April 1999, we received recommendation for ISO 9001 registration from
SGS International Certification Services, Inc. ISO 9001 is an international set
of quality assurance standards for companies involved in the design,
development, manufacturing, installation and servicing of products or services.
These standards are set by the International Organization for Standardization
(ISO), an international federation of national standards bodies. To be
recommended for ISO 9001 certification, a company must be audited by an ISO
accredited auditing company and must meet or surpass the ISO standards. We
believe that our customers value the processes, control and traceability that
are required to achieve ISO 9001 certification.

RESEARCH AND DEVELOPMENT

     Our research and development expenses were $13.9 million in fiscal 1999,
$7.2 million in fiscal 1998 and $2.2 million in fiscal 1997. For the quarter
ended June 30, 1999, our research and development expenses were $3.9 million
compared to $3.1 million for the quarter ended June 30, 1998. We believe that
our research and development efforts are essential to our ability to deliver
innovative products that address the needs of the market and help evolve the
capabilities of SANs. As of June 30, 1999, our staff included personnel with
expertise in several key areas, including 4 people engaged in standards and
architecture, 2 people engaged in advanced technologies, 14 people engaged in
ASIC design, 16 people engaged in software design, 12 people engaged in
manufacturing engineering, 30 people engaged in product development and
engineering and 9 people in purchasing, administrative and supporting functions.

     We recognize the need to integrate new and enhanced technologies into our
products and to continue to extend the open SAN architecture. Research and
development programs that we are currently involved in include 2 and 4 gigabit
per second ASIC cores and transceivers, high availability clustering
architectures, SAN management application programming interfaces (APIs),
distributed SAN management agents, and the integration of SAN, local area
network and wide area network technologies. In addition to the development of
proprietary core technologies, we plan to continue partnerships with other
leading providers of SAN technologies, products and services to jointly develop
architectures and industry standards.

     Our product development efforts may not result in commercially viable
products, and our products may be made obsolete by changing technology or new
product announcements by other companies. See "Risk Factors -- We have limited
product offerings and our business may suffer if demand for any of these
products declines or fails to develop as we expect."

COMPETITION

     The competitive environment in the SAN market is still developing. We
anticipate that the market for our products will be highly competitive,
continually evolving and subject to rapid technological change. New SAN products
are being introduced by various server and storage providers, and existing
products will be continually enhanced. We face competition primarily from other
manufacturers of SAN hub and switch products, including Emulex Corporation and
Vixel Corporation in the SAN hub market and Ancor Communications, Inc., Brocade
Communications Systems, Inc. and Vixel Corporation in

                                       50
<PAGE>   51

the SAN switch market. Furthermore, although we currently offer products that
are complementary to SAN software products offered by companies such as Legato
Systems, Inc. and Veritas Software Corporation, they and other enterprise
software developers may in the future compete with us. We also compete with
providers of data storage solutions that employ traditional technologies,
including SCSI-based technology, such as Adaptec, Inc., LSI Logic Corporation
and QLogic Corporation.

     In addition, as the market for SAN products grows, we may face competition
from traditional networking companies and other manufacturers of networking
equipment. These networking companies may enter the SAN market by introducing
their own products, acquiring an existing SAN infrastructure provider or by
entering into an alliance with an existing SAN provider. It is also possible
that original equipment manufacturer customers could develop and introduce
products competitive with our product offerings. We believe the competitive
factors in the SAN market include the following:

     - product performance and features;

     - product reliability and interoperability;

     - price;

     - strength of distribution channel;

     - ability to meet delivery schedules; and

     - customer service and technical support.

     Some of our current and potential competitors have longer operating
histories, significantly greater resources and name recognition and a larger
installed base of customers than we have. As a result, these competitors may
have greater credibility with our existing and potential customers. They also
may be able to adopt more aggressive pricing policies and devote greater
resources to the development, promotion and sale of their products than we can
to ours, which would allow them to respond more quickly than we can to new or
emerging technologies and changes in customer requirements. In addition, some of
our current and potential competitors have already established supplier or joint
development relationships with divisions of our current or potential customers.
These competitors may be able to leverage their existing relationships to
discourage these customers from purchasing additional products from us or
persuade them to replace our products with their products. Increased competition
could result in pricing pressures, reduced sales, reduced margins, reduced
profits, reduced market share or the failure of our products to achieve or
maintain market acceptance. We may not have the financial resources, technical
expertise or marketing, manufacturing, distribution and support capabilities to
compete successfully in the future. Additionally, we may not be able to compete
successfully against current or future competitors and competitive pressures may
materially harm our business.

INTELLECTUAL PROPERTY

     Our success depends on our proprietary technology. We rely on a combination
of patents, trademarks, and trade secrets, as well as confidentiality agreements
and other contractual restrictions with employees and third parties, to
establish and protect our proprietary rights. We currently hold two United
States patents with respect to our SAN-related technology. We also have six
pending patents in the United States with respect to

                                       51
<PAGE>   52

our technology and are seeking patent protection for certain aspects of
technology in selected international locations. However, it is possible that
patents may not be issued for these applications. All of our software products
are copyrighted with our banners and notices. We have been granted registration
of two trademarks in the United States. Despite precautions, third parties could
copy or otherwise obtain and use our products or technology without
authorization, or develop similar technology independently. The measures we
undertake may not be adequate to protect our proprietary technology, and these
measures may not preclude competitors from independently developing products
with functionality or features similar to our products. There can be no
assurance that the precautions we take will prevent misappropriation or
infringement of our technology. Failure to protect our intellectual property
could materially harm our business.

     It is possible that litigation may be necessary in the future to enforce
our intellectual property rights, to protect our trade secrets or to determine
the validity and scope of the proprietary rights of others. Litigation could
result in substantial costs and diversion of our resources and could materially
harm our business. From time to time, we have received, and may receive in the
future, notice of claims of infringement of other parties' proprietary rights.
Infringement or other claims could be asserted or prosecuted against us in the
future, and it is possible that past or future assertions or prosecutions could
harm our business. Any such claims, with or without merit, could be
time-consuming, result in costly litigation and diversion of technical and
management personnel, cause delays in the development and release of our
products, or require us to develop non-infringing technology or enter into
royalty or licensing arrangements. Such royalty or licensing arrangements, if
required, may not be available on terms acceptable to us, or at all. For these
reasons, infringement claims could materially harm our business.

BACKLOG

     At June 30, 1999, backlog for our products was approximately $7.9 million,
of which 81%, or approximately $6.4 million, is scheduled for delivery to
customers during the September 1999 quarter, compared to backlog of
approximately $2.8 million at June 30, 1998, of which 73%, or approximately $2.0
million, was scheduled for delivery to customers during the September 1998
quarter. Typically, our original equipment manufacturer customers forecast
expected purchases on a three to six month rolling basis, as compared to
distribution channel partners which order as required with minimal order
fulfillment time. All orders are subject to cancellation or delay by the
customers with limited or no penalty. Therefore, our backlog is not necessarily
indicative of actual sales for any succeeding period.

EMPLOYEES

     As of June 30, 1999, we had 146 employees, 146 of whom were full-time. 67
employees were engaged in research and development, 20 were in engineering
services, 31 were in sales and marketing, 12 were in manufacturing and 16 were
in finance, administration and information services. None of our employees are
represented by a labor union. We have not experienced any work stoppages and
consider our relations with our employees to be good.

     Our future performance depends in significant part upon the continued
service of our key technical, sales and senior management personnel, none of
whom is bound by an employment agreement requiring service for any defined
period of time. The loss of the

                                       52
<PAGE>   53

services of one or more of our key employees could have a material adverse
effect on our business, financial condition and results of operations. Our
future success also depends on our continuing ability to attract, train and
retain highly qualified technical, sales and managerial personnel. Competition
for such personnel is intense, and we may not be able to retain our key
personnel in the future.

LITIGATION

     From time to time, we may become involved in various lawsuits and legal
proceedings which arise in the ordinary course of business. For example, in May
1999, a former employee filed a complaint against us. Our management believes
this claim is without merit and that resolution of this claim will not have a
material adverse effect on our financial position or statements of operations.
However, litigation is subject to inherent uncertainties, and an adverse result
in this or other matters may arise from time to time that may harm our business.
See "Risk Factors -- We rely heavily on our intellectual property, and efforts
to protect it may cause us to become involved in costly and lengthy litigation
which could seriously harm our business."

FACILITIES

     Our corporate headquarters facility, of approximately 65,000 square feet,
is located in San Jose, California. We lease our corporate headquarters facility
pursuant to a lease agreement that expires in November 2005. Of this space,
approximately 12,000 square feet are not available for us to occupy until
October 1999. We believe this existing facility is adequate for our needs
through September 2000.

     We lease approximately 23,000 square feet in San Jose, California, pursuant
to a lease that expires in January 2001. We vacated this facility in October
1998 when we moved to our corporate headquarters facility. We sublease
approximately 19,000 square feet of this facility to sub-tenants pursuant to
subleases which expire in January 2001.

     Our Southern California research and development facility of approximately
7,800 square feet is located in Placentia, California. The lease on this
facility expires in October 1999, and we are currently seeking to extend that
lease or locate a suitable new facility. Although we believe a suitable facility
can be obtained to meet our future requirements, we cannot be certain that we
will be able to find such a facility on commercially reasonable terms.

                                       53
<PAGE>   54

                                   MANAGEMENT

EXECUTIVE OFFICERS AND DIRECTORS

     The following table sets forth certain information regarding our executive
officers and directors as of June 30, 1999:

<TABLE>
<CAPTION>
            NAME               AGE                      POSITION
            ----               ---                      --------
<S>                            <C>   <C>
Bill Sickler.................  50    President, Chief Executive Officer and Director
Dr. Alistair Black...........  37    Chief Technology Officer and Director
Howey Chin...................  40    Chief Strategy Officer
Christine E. Munson..........  50    Chief Financial Officer, Vice President of
                                     Administration
Kurt Chan....................  43    Vice President of Development
Wayne Rickard................  40    Senior Vice President, Research and Development
Kent Bridges.................  53    Vice President of Worldwide Sales
David Tang...................  37    Vice President of Marketing
William Hubbard..............  55    Vice President of Manufacturing
Dr. Milton Chang(1)..........  56    Director
Dr. Denny R. S. Ko(2)........  59    Director
Peter Morris(2)..............  43    Director
Robert Kuhling(1)............  50    Director
Stephen J. Luczo.............  42    Director
</TABLE>

- -------------------------
(1) Member of the compensation committee.

(2) Member of the audit committee.

     Bill Sickler has served as our President, Chief Executive Officer and a
director since April 1996. From March 1995 to April 1996, Mr. Sickler was
executive director of software business development for Seagate Technology,
Inc., a software developer and manufacturer of disk drives. From December 1992
to March 1995, he was president and chief executive officer of Networking
Computing, Inc., a provider of network management software for local area
networks. Mr. Sickler is a director of Savoir Technology Group, Inc., a
distributor of computer, storage and networking equipment. Mr. Sickler holds a
B.S. in engineering from Princeton University and an M.B.A. from the University
of California, Berkeley.

     Dr. Alistair Black co-founded Gadzoox in April 1992 and has served as a
director and our Chief Technology Officer since April 1996 and as Chief
Executive Officer, Chief Financial Officer and a director from April 1992
through April 1996. Dr. Black received his B.S. in electrical engineering from
the University of California, Berkeley and his M.S. and Ph.D. in electrical
engineering from Stanford University.

     Howey Chin has served as our Chief Strategy Officer since March 1998. Mr.
Chin served as our Vice President of Marketing from September 1995 to March
1998. From February 1991 to September 1995, he worked at Vitesse Semiconductor
Corporation as director of marketing for the standard products group and served
as a representative on the Fibre Channel Standards Committee. Mr. Chin was the
original editor of the Jitter Working Group and co-editor of the 10-Bit
Interface Group and is a board member of the Fibre Channel Loop Community, an
organization that promotes fibre channel. Mr. Chin holds a B.S. in electrical
engineering from Mississippi State University.

                                       54
<PAGE>   55

     Christine E. Munson has served as our Chief Financial Officer and Vice
President of Administration since February 1997. From May 1996 through February
1997, Ms. Munson worked for NetCarta Corporation, a computer software company,
as chief financial officer. From April 1993 through May 1996, Ms. Munson was the
chief financial and administrative officer for the California Culinary Academy,
Inc., a culinary arts school. Ms. Munson is a certified public accountant and
holds a B.S. in business from San Jose State University.

     Kurt Chan has served as our Vice President of Development since December
1995. Prior to joining us, Mr. Chan worked for Hewlett-Packard Company, a
computer hardware company, from December 1978 to December 1995 in a variety of
engineering and management positions, most recently as program manager, storage
and subsystems. From June 1994 to June 1995, Mr. Chan served as the technical
editor and facilitator for the Private Loop Disk Profile, which provides the
standards upon which current fibre channel storage implementations are based.
Mr. Chan holds a B.S. in electrical engineering from San Jose State University.

     Wayne Rickard has served as our Senior Vice President of Research and
Development and General Manager of our Placentia, California Research and
Development facility since January 1999. Mr. Rickard previously served as Vice
President of Research and Development and General Manager at the Placentia
facility from April 1996 to January 1999. From September 1981 until joining us
in April 1996, Mr. Rickard worked at Emulex Corporation, a data networking
company, where he last served as senior director of engineering from April 1994
through April 1996. Mr. Rickard has been active in the development of many fibre
channel standards and in developing Internet protocol over fibre channel. Mr.
Rickard holds a B.S. in electrical engineering from California State University,
Fullerton and an M.B.A. from Pepperdine University.

     Kent Bridges joined us in December 1996 as Vice President of Worldwide
Sales. From December 1994 to September 1996, he served as vice president of
worldwide sales at ZietNet Corporation, an asynchronous transfer mode networking
company. Mr. Bridges holds a B.S. in marketing and finance from Brigham Young
University.

     David Tang has served as our Vice President of Marketing since March 1998
and served as our Director of Business Development from December 1996 to March
1998. From September 1994 to November 1996, Mr. Tang served as senior manager of
strategic marketing for Quantum Corporation, a computer data storage company.
Mr. Tang studied electrical engineering at the University of Delaware and is a
graduate of Stanford University's Executive Institute for High Technology
Business Management.

     William Hubbard has served as our Vice President of Manufacturing since
September 1997. From May 1995 to July 1997, Mr. Hubbard served as vice
president, manufacturing for Gregory Associates, a contract manufacturing
company. From March 1994 to May 1995, Mr. Hubbard was vice president of
operations for Hughes Lan Networks, a supplier of local area networking
equipment. Mr. Hubbard holds a B.S. in manufacturing technology from Montana
State University and an M.S. in Management Science and Engineering from
Worchester Polytechnic Institute.

     Dr. Milton Chang has served as a director of our company since its
inception in April 1992. Dr. Chang is chairman of the board of directors of New
Focus, Inc., a company that supplies photonics tools for laser applications,
which he founded in 1990. From 1996 to 1998, Dr. Chang served on the Visiting
Committee for Advanced Technology of the

                                       55
<PAGE>   56

National Institute of Standards and Technology. Dr. Chang is a member of the
board of directors for both Euphonix, Inc. and IRIDEX Corporation. Dr. Chang
holds a B.S. in electrical engineering from the University of Illinois and an
M.S. and Ph.D. in electrical engineering from the California Institute of
Technology.

     Dr. Denny R. S. Ko has served as a director of our company since December
1994. Dr. Ko has been managing general partner of DynaFund Ventures, a venture
capital firm, since August 1997. Dr. Ko is also the chairman of the board of
directors of Dynamics Technology, Inc., a technical research, engineering and
consulting company, which he founded in 1976. Dr. Ko holds a B.S. in mechanical
engineering from National Taiwan University, an M.S. in aeronautics from the
University of California, Berkeley and a Ph.D. in aeronautics and applied
mathematics from the California Institute of Technology.

     Peter Morris has served as a director of our company since September 1996.
Mr. Morris is a general partner at New Enterprise Associates, a venture capital
firm, where he has been employed since 1992. Mr. Morris holds a B.S. in
electrical engineering and an M.B.A. from Stanford University.

     Robert Kuhling has served as a director of our company since September
1996. Mr. Kuhling has been a general partner of venture capital funds managed by
ONSET Ventures since 1987. He is a director of Conceptus, Inc. and Euphonix,
Inc. as well as several private companies. Mr. Kuhling holds an M.B.A. from
Harvard University and an A.B. in economics from Hamilton College.

     Stephen J. Luczo has served as a director of our company since June 1997.
Mr. Luczo currently serves as chief executive officer, president and director of
Seagate Technology, Inc., a maker of information storage devices. Mr. Luczo
joined Seagate Technology in October 1993 as senior vice president, corporate
development and was promoted to executive vice president, corporate development
in March 1995, where he served until September 1997. He was promoted to
president and chief operating officer of Seagate Technology in September 1997,
and served in the latter capacity until August 1998. In July 1998, Mr. Luczo was
promoted to chief executive officer and appointed to the board of directors. Mr.
Luczo also serves on the board of directors of Veritas Software Corporation.
Prior to the merger of Veritas Software Corporation and Seagate Software, Inc.,
Mr. Luczo also served as chairman of the board of directors of Seagate Software.
Prior to becoming Seagate Software's chairman in July 1997, Mr. Luczo served as
Seagate Software's chief operating officer between March 1995 and July 1997. Mr.
Luczo received a M.B.A. from Stanford University Graduate School of Business,
after completing his undergraduate work at Stanford University where he received
his A.B. degree in economics and psychology.

BOARD OF DIRECTORS

     We currently have seven directors. During fiscal 1999, our board of
directors met six times. Currently all directors hold office until the next
annual meeting of stockholders or until their successors are duly elected. Our
board of directors will be divided into three classes, each with staggered
three-year terms. As a result, only one class of directors will be elected at
each annual meeting of our stockholders, with the other classes continuing for
the remainder of their respective three-year terms.

                                       56
<PAGE>   57

Board Committees

     Our board of directors currently has an audit committee and a compensation
committee. The audit committee consists of Dr. Ko and Mr. Morris. The audit
committee makes recommendations to the board of directors regarding the
selection of independent auditors, reviews the scope of audit and other services
by our independent auditors, reviews the accounting principles and auditing
practices and procedures to be used for our financial statements and reviews the
results of those audits. The compensation committee consists of Dr. Chang and
Mr. Kuhling. The compensation committee makes recommendations to the board of
directors regarding our stock plans and the compensation of officers.

Director Compensation

     Our non-employee directors are reimbursed for expenses incurred in
connection with attending board and committee meetings but are not compensated
for their services as board or committee members. We have in the past granted
non-employee directors options to purchase our common stock pursuant to the
terms of our Amended and Restated 1993 Stock Plan. We also grant non-employee
directors options to purchase our common stock pursuant to the terms of our 1999
Director Option Plan. See "-- Stock Plans."

COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

     None of the members of the compensation committee is currently, or has ever
been at any time since our formation, one of our officers or employees. No
member of the compensation committee serves as a member of the board of
directors or compensation committee of any entity that has one or more officers
serving as a member of our board of directors or compensation committee.

                                       57
<PAGE>   58

EXECUTIVE OFFICERS

     Our executive officers are elected by, and serve at the discretion of, our
board of directors. There are no family relationships among our directors and
officers.

Compensation

     The following table sets forth information concerning compensation for
services rendered to us in all capacities earned in the fiscal year ended March
31, 1999 by our Chief Executive Officer and the four next most highly
compensated executive officers who earned more than aggregate cash compensation
of $100,000 during fiscal 1999 (collectively, our "Named Executive Officers"):

<TABLE>
<CAPTION>
                                                                        LONG-TERM
                                                                       COMPENSATION
                                                        ANNUAL         ------------
                                                     COMPENSATION       SECURITIES
                                                  ------------------    UNDERLYING
          NAME AND PRINCIPAL POSITION              SALARY     BONUS      OPTIONS
          ---------------------------             --------   -------   ------------
<S>                                               <C>        <C>       <C>
Bill Sickler(1).................................  $198,750        --      100,000
  President and Chief Executive Officer
Kent Bridges....................................   137,667   $63,451(2)     20,000
  Vice President of Worldwide Sales
Alistair Black..................................   142,500        --       55,000
  Chief Technology Officer
Wayne Rickard...................................   143,826        --       45,000
  Senior Vice President of Research and
     Development
Kurt Chan(3)....................................   138,250        --       20,000
  Vice President of Development
</TABLE>

- -------------------------
(1) In April 1996, Mr. Sickler acquired 1,200,000 shares of restricted stock at
    $0.075 per share, subject to our right to repurchase such shares in the
    event of the termination of his employment. Our right to repurchase lapses
    at a rate of 25% of these shares per year. As of March 31, 1999, Mr. Sickler
    held 350,000 shares of restricted common stock subject to our right of
    repurchase, with an aggregate value of $1,583,750 (based on a per share
    price of $4.60, the fair market value of our common stock as of March 31,
    1999, as determined by our board of directors). No dividends will be paid on
    this stock.

(2) Represents sales commissions.

(3) In November 1995, Mr. Chan acquired 200,000 shares subject to our right of
    repurchase in the event of his termination. Our right to repurchase lapses
    at a rate of 25% of these shares per year. As of March 31, 1999, Mr. Chan
    held 33,333 shares of restricted common stock subject to our right of
    repurchase, with an aggregate value of $152,498 (based on a per share price
    of $4.60, the fair market value of our common stock as of March 31, 1999, as
    determined by our board of directors). No dividends will be paid on this
    stock.

                                       58
<PAGE>   59

Option Grants in Fiscal 1999

     The following table sets forth information with respect to stock options
granted to each of our Named Executive Officers during the fiscal year ended
March 31, 1999. In accordance with the rules of the Securities and Exchange
Commission, also shown below is the potential realizable value over the term of
the option (the period from the grant date to the expiration date) based on
assumed rates of stock appreciation of 5% and 10%, compounded annually. These
amounts are mandated by the Securities and Exchange Commission and do not
represent our estimate of future stock price. Actual gains, if any, on stock
option exercises will depend on the future performance of our common stock.

<TABLE>
<CAPTION>
                                         INDIVIDUAL GRANTS                      POTENTIAL REALIZABLE
                       ------------------------------------------------------     VALUE AT ASSUMED
                       NUMBER OF    PERCENT OF TOTAL                               ANNUAL RATES OF
                       SECURITIES   OPTIONS GRANTED                              STOCK APPRECIATION
                       UNDERLYING     TO EMPLOYEES     EXERCISE                  FOR OPTION TERM(5)
                        OPTIONS        IN FISCAL       PRICE PER   EXPIRATION   ---------------------
        NAME           GRANTED(1)       1999(2)        SHARE(3)     DATE(4)        5%          10%
        ----           ----------   ----------------   ---------   ----------   ---------   ---------
<S>                    <C>          <C>                <C>         <C>          <C>         <C>
Bill Sickler(6)......   100,000            8.9%          $2.00      05/12/08    $125,780    $318,750
Kent Bridges(7)......    20,000            1.8            3.10      11/18/08      38,990      98,810
Alistair Black.......    55,000            4.9            2.00      05/12/08      69,180     175,310
Wayne Rickard........    25,000            2.2            3.10      01/20/09      48,740     123,520
                         20,000            1.8            3.10      11/18/08      38,990      98,810
Kurt Chan............    20,000            1.8            3.10      11/18/08      38,990      98,810
</TABLE>

- -------------------------
(1) The options for each of the Named Executive Officers vest at the rate of
    2.08% of the shares subject to the option per month, except for the option
    granted to Dr. Black. Dr. Black's option vests at the rate of 3.79% of the
    shares subject to the option per month.

(2) Based on an aggregate of 1,119,400 options we granted to our employees and
    consultants, including the Named Executive Officers, in fiscal 1999.

(3) The exercise price per share of each option was equal to the fair market
    value of the common stock on the date of grant as determined by our board of
    directors.

(4) Options may terminate before their expiration dates if the optionee's status
    as an employee is terminated or upon the optionee's death or disability.

(5) The potential realizable value is calculated assuming that the fair market
    value of the common stock on the date of grant appreciates at the indicated
    annual rate compounded annually for the entire term of the option (ten
    years) and that the option is exercised and sold on the last day of its term
    for the appreciated stock price.

(6) Upon a change of control, the unvested portion of stock options held by Mr.
    Sickler will automatically accelerate as to a number of shares equal to the
    lesser of: (1) 25% of the initial number of shares subject to the option or
    (2) a number of shares such that following acceleration, 12.5% of the
    initial number of shares subject to the option, or if a total of less than
    12.5% remain unvested, such total remaining amount, will remain unvested.
    Upon a change of control and the involuntary termination of Mr. Sickler, all
    of the unvested portion of stock options held by him will automatically
    accelerate.

(7) Upon a change of control, 50% of the unvested portion of each stock option
    held by Mr. Bridges will automatically accelerate.

                                       59
<PAGE>   60

Aggregate Option Exercises in Fiscal 1999 and Fiscal Year-End Option Values

     With respect to our Named Executive Officers, the following table sets
forth information concerning option exercises in fiscal 1999 and exercisable and
unexercisable options held as of March 31, 1999:

<TABLE>
<CAPTION>
                                                           NUMBER OF
                                                     SECURITIES UNDERLYING         VALUE OF UNEXERCISED
                                                      UNEXERCISED OPTIONS         IN-THE-MONEY OPTIONS AT
                           SHARES                      AT MARCH 31, 1999             MARCH 31, 1999(1)
                         ACQUIRED ON    VALUE     ---------------------------   ---------------------------
         NAME             EXERCISE     REALIZED   EXERCISABLE   UNEXERCISABLE   EXERCISABLE   UNEXERCISABLE
         ----            -----------   --------   -----------   -------------   -----------   -------------
<S>                      <C>           <C>        <C>           <C>             <C>           <C>
Bill Sickler(2)........    108,333     $207,729      62,500        129,167      $  242,396      $431,709
Kent Bridges(3)........         --           --     192,917        167,083         847,826       684,975
Alistair Black.........         --           --     179,166         75,834         770,623       277,377
Wayne Rickard..........         --           --     241,626        149,374       1,078,062       540,268
Kurt Chan..............         --           --      93,501         72,499         410,948       264,882
</TABLE>

- -------------------------
(1) Based on a value of $4.60 per share, the fair market value of our common
    stock as of March 31, 1999, minus the per share exercise price, multiplied
    by the number of shares underlying the option.

(2) Upon a change of control, the unvested portion of stock options held by Mr.
    Sickler will automatically accelerate as to a number of shares equal to the
    lesser of: (1) 25% of the initial number of shares subject to the option or
    (2) a number of shares such that following acceleration, 12.5% of the
    initial number of shares subject to the option, or if a total of less than
    12.5% remain invested, such total remaining amount, will remain unvested. If
    a change of control had occurred on March 31, 1999, an additional 75,000
    shares subject to options held by Mr. Sickler would have vested. Upon a
    change of control and the involuntary termination of Mr. Sickler, all of the
    unvested portion of stock options held by him will automatically accelerate.

(3) Upon a change of control, 50% of the unvested portion of each stock option
    held by Mr. Bridges will automatically accelerate. If a change of control
    had occurred on March 31, 1999, an additional 83,542 shares subject to
    options held by Mr. Bridges would have vested.

STOCK PLANS

Amended and Restated 1993 Stock Plan

     Our Amended and Restated 1993 Stock Plan, as amended and restated, was
adopted by our board of directors in May 1999 to be effective upon completion of
this offering. On June 19, 1999, our stockholders approved this plan, as amended
and restated. This plan provides for the grant of incentive stock options to our
employees and nonstatutory stock options and stock purchase rights to our
employees, directors and consultants. We have reserved an aggregate of 8,180,000
shares of common stock for issuance under this plan. The number of shares
reserved for issuance under this plan will be subject to an annual increase on
the first day of each fiscal year equal to the lesser of (a) 1,500,000 shares,
(b) 5.0% of the outstanding shares on that date, or (c) a lesser amount as
determined by the board of directors. As of June 30, 1999, options to purchase
4,331,731 shares of common stock were outstanding under this plan, 2,954,095
shares had been issued upon exercise of options, net of repurchases, and 894,174
shares are available for future grant.

     The compensation committee of our board of directors administers the stock
plan and determines the terms of options granted, including the exercise price,
the number of shares

                                       60
<PAGE>   61

subject to individual option awards and the vesting period of options. The
exercise price of nonstatutory options must generally be at least 85% of the
fair market value of the common stock on the date of grant. The exercise price
of incentive stock options cannot be lower than 100% of the fair market value of
the common stock on the date of grant and, in the case of incentive stock
options granted to holders of more than 10% of our voting power, not less than
110% of the fair market value. The term of an incentive stock option cannot
exceed 10 years, and the term of an incentive stock option granted to a holder
of more than 10% of our voting power cannot exceed five years.

     Options granted under our stock plan will accelerate and become fully
vested in the event we are acquired, unless the successor corporation assumes or
substitutes other options in their place. Our board of directors may not,
without the adversely affected optionee's prior written consent, amend, modify
or terminate the stock plan if the amendment, modification or termination would
impair the rights of optionees. Our stock plan will terminate in 2009 unless
terminated earlier by the board of directors.

1999 Employee Stock Purchase Plan

     Our 1999 Employee Stock Purchase Plan was adopted by our board of directors
in May 1999 and by our stockholders in June 1999. This plan provides our
employees with an opportunity to purchase our common stock through accumulated
payroll deductions. We initially reserved 150,000 shares of common stock for
issuance under this purchase plan. As of June 30, 1999, we had not issued any
shares under this plan. The number of shares reserved for issuance under the
purchase plan will be subject to an annual increase on the first day of each
fiscal year equal to the lesser of (a) 250,000 shares, (b) 1.0% of the
outstanding shares on that date, or (c) a lesser amount as determined by our
board of directors.

     Our purchase plan will be administered by our board of directors or by a
committee appointed by the board of directors. The purchase plan permits
eligible employees to purchase our common stock through payroll deductions of up
to 10% of his or her compensation or up to 1,000 shares of common stock for each
offering period, up to a maximum of $25,000 for all purchases within the same
calendar year. Employees are eligible to participate in this purchase plan if
they are customarily employed by us at least 20 hours per week and more than
five months in any calendar year and only to the extent that they do not own
more than 5% of our outstanding shares.

     Unless our board of directors or its committee determines otherwise, this
purchase plan will be implemented in a series of consecutive, overlapping
offering periods, each approximately six months in duration. Offering periods
will begin on the first trading day on or after August 1 and February 1 of every
year and terminate on the last trading day in the period six months later,
provided that the first offering period will commence on the effective date of
this offering and will end on January 31, 2000, or the last trading day prior
thereto. If we are acquired and the successor corporation does not assume all
outstanding options under this purchase plan, then the offering and purchase
periods then in progress will be shortened so that all options will be
automatically exercised immediately prior to the date of acquisition. The price
at which common stock will be purchased under this purchase plan is equal to at
least 85% of the fair market value of the common stock on the first day of the
applicable offering period or the last day of the applicable purchase period,
whichever is lower. Employees may end their participation in the offering period
at any time, and participation automatically ends on termination of

                                       61
<PAGE>   62

employment or on the 91(st) day following an extended leave of absence from
which they have not returned. Our board of directors may not, without the
adversely affected optionee's prior written consent, amend, modify or terminate
this purchase plan at any time if the amendment, modification or termination
would impair the rights of plan participants. This purchase plan will terminate
in May 2009, unless terminated earlier in accordance with its provisions.

1999 Director Option Plan

     Our 1999 Director Option Plan was adopted by our board of directors in May
1999 and by our stockholders in June 1999. This director plan provides for the
grant of nonstatutory stock options to non-employee directors. We have reserved
a total of 50,000 shares of common stock for issuance under it. The number of
shares reserved for issuance under the plan will be subject to an annual
increase every April equal to a number of shares sufficient to bring the number
of shares available for future option grants to 50,000 shares.

     Under our director plan, an option to purchase 5,000 shares of common stock
was automatically granted to each of our five non-employee directors serving on
our board of directors upon approval of the plan by the stockholders. Each newly
elected non-employee director will automatically receive an option to purchase
5,000 shares of common stock upon his or her election. Additionally, each of our
non-employee directors shall automatically be granted an option to purchase
2,500 shares of common stock each year on May 1, if on that date he or she has
served on our board of directors for at least the preceding six months. Each
option shall have a term of three years, and each option is immediately
exercisable. The exercise price of all options shall be 100% of the fair market
value per share of the common stock, as determined by our board of directors,
prior to the existence of a public market for our common stock, or after the
existence of a public market, as reported on The Nasdaq Stock Market's National
Market as the closing price of our common stock on the date of grant or on the
last trading day prior to the date of grant, if the grant is made on a holiday.

     Options granted under the director plan must be exercised within 3 months
after the end of an optionee's tenure as a member of our board of directors, or
within 12 months after his or her death or disability, but in any case not later
than the expiration of the option's term.

     As of June 30, 1999, options to purchase 25,000 shares of common stock were
outstanding, and options to purchase 25,000 shares of common stock were
available for future issuance.

401(k) Plan

     On March 11, 1996, our board of directors adopted a Retirement Savings and
Investment Plan covering our full-time employees located in the United States.
This plan is intended to qualify under Section 401(k) of the Internal Revenue
Code of 1986, as amended, so that contributions to this plan by employees, and
the investment earnings thereon, are not taxable to employees until withdrawn.
Pursuant to this plan, employees may elect to reduce their current compensation
by up to the lesser of 20% of their annual compensation or the statutorily
prescribed annual limit ($10,000 in calendar 1998) and to have the amount of
such reduction contributed to this plan. This plan does not permit additional
matching contributions by us on behalf of plan participants.

                                       62
<PAGE>   63

CHANGE OF CONTROL AGREEMENTS

     We have entered into change of control agreements with Bill Sickler and
Kent Bridges. In the event of a change of control (as defined in the agreements)
and regardless of whether the employment relationship continues following the
change of control, a portion of the outstanding stock options issued to these
two executives will be accelerated and a portion of our right to repurchase
applicable to their restricted stock, if any, will lapse.

     With regard to Mr. Sickler's change of control agreement, if 18 months or
more of vesting or repurchase option remain, upon a change of control one year
of vesting will accelerate and one year of our repurchase option will lapse. If
more than 6 months but less than 18 months remain, six months of vesting and our
repurchase option will continue over the original vesting schedule and any
remaining unvested portion will accelerate and any remaining repurchase option
will lapse. If less than 6 months remain, a change of control will have no
effect. The change of control agreement also provides that upon a change of
control and an involuntary termination (as defined in the agreement) of Mr.
Sickler, any remaining unvested portion, not otherwise accelerated solely upon a
change of control, of any stock option will be automatically accelerated in full
and any remaining repurchase option on restricted stock will automatically lapse
in full.

     Mr. Bridges' change of control agreement provides that one-half of the
unvested portion of any stock option will be accelerated and one-half of any
repurchase option shall lapse upon a change of control. The balance of any
unvested shares not accelerated will continue to vest over the original vesting
schedule and the balance of any shares subject to repurchase option will
continue to lapse over the original schedule.

     Both change of control agreements provide that if the acceleration of
vesting or lapse of any applicable repurchase option would cause the transaction
resulting in the change of control to not be eligible for accounting treatment
as a "pooling of interests," then each of these executive's stock options and
restricted stock will not have their vesting accelerated and any applicable
repurchase options will not lapse.

LIMITATIONS ON LIABILITY AND INDEMNIFICATION

     Our certificate of incorporation limits the liability of directors to the
maximum extent permitted by Delaware law. Delaware law provides that directors
of a corporation will not be personally liable for monetary damages for breach
of their fiduciary duties as directors, except liability for the following:

     - any breach of their duty of loyalty to the corporation or its
       stockholders;

     - acts or omissions not in good faith or which involve intentional
       misconduct or a knowing violation of law;

     - unlawful payments of dividends or unlawful stock repurchases or
       redemptions; or

     - any transaction from which the director derived an improper personal
       benefit.

     This limitation of liability does not apply to liabilities arising under
the federal securities laws and does not affect the availability of equitable
remedies such as injunctive relief or rescission.

     Our certificate of incorporation and bylaws provide that we shall indemnify
our directors and executive officers and may indemnify our other officers and
employees and

                                       63
<PAGE>   64

other agents to the fullest extent permitted by law. We believe that
indemnification under our bylaws covers at least negligence and gross negligence
on the part of indemnified parties. Our bylaws also permit us to secure
insurance on behalf of any officer, director, employee or other agent for any
liability arising out of his or her actions in such capacity, regardless of
whether the bylaws would permit indemnification.

     We have entered into agreements to indemnify our directors, executive
officers and controller, in addition to indemnification provided for in our
bylaws. These agreements, among other things, provide for indemnification of our
directors and executive officers for certain expenses (including attorneys'
fees), judgments, fines and settlement amounts incurred by any such person in
any action or proceeding, including any action by or in our rights, arising out
of such person's services as a director or executive officer to us, any of our
subsidiaries or any other company or enterprise to which the person provides
services at our request. We believe that these provisions and agreements are
necessary to attract and retain qualified persons as directors and executive
officers.

                                       64
<PAGE>   65

                              CERTAIN TRANSACTIONS

TRANSACTIONS WITH DIRECTORS, EXECUTIVE OFFICERS AND 5% STOCKHOLDERS

     On April 15, 1996, we sold 1,200,000 shares of common stock at a price of
$0.075 per share to Bill Sickler for an aggregate purchase price of $90,000.

     On September 5, 1996, we sold 4,444,444 shares of Series E preferred stock
at a price per share of $1.80 to a group of private investors that included the
following of our directors and 5% stockholders:

<TABLE>
<CAPTION>
                    PURCHASER                       SHARES OF SERIES E STOCK
                    ---------                       ------------------------
<S>                                                 <C>
NEA Entities:
  New Enterprise Associates VI, L.P...............         1,944,446
  NEA Presidents Fund, L.P........................            41,666
  NEA Ventures 1996, L.P..........................             2,778
ONSET Enterprise Associates II, L.P...............         1,388,888
Dynamics Technology, Inc..........................           228,106
Milton Chang......................................           277,778
</TABLE>

     New Enterprise Associates VI, L.P., NEA Presidents Fund, L.P. and NEA
Ventures 1996, L.P. are affiliated entities and together are considered a
greater than 5% stockholder. Peter Morris, one of our directors, is a partner of
New Enterprise Associates. Mr. Morris disclaims any beneficial ownership of the
securities held by such entities, except that due to his proportional
partnership interest in the entities. Rob Kuhling, one of our directors, is a
partner with ONSET Enterprise Associates. Mr. Kuhling disclaims any beneficial
ownership of the securities held by ONSET Enterprise Associates II, L.P., except
that due to his proportional partnership interest in the entity. Dr. Denny R. S.
Ko, one of our directors, is the chairman of Dynamics Technology, Inc. Mr. Ko
disclaims any beneficial ownership of the securities held by such entities
except to the extent of his proportional interest therein.

     Pursuant to a sale and rights transfer agreement dated as of May 26, 1999,
a third-party investor sold all of the shares of our capital stock that it held,
a total of 784,314 shares of Series H preferred stock, to three investors. Of
these 784,314 shares, the third-party investor sold 459,317 shares to New
Enterprise Associates VIII, Limited Partnership, 2,500 shares to N.E.A.
Presidents' Fund, L.P. and 322,497 shares to ONSET Enterprise Associates III,
L.P. at a per share purchase price of $10.00 for an aggregate purchase price of
$7,843,140.

                                       65
<PAGE>   66

     On various occasions during 1999 and the two preceding fiscal years, we
granted the following options to purchase our common stock to the following
officers, directors and stockholders who beneficially own five percent or more
of our securities:

<TABLE>
<CAPTION>
                                         DATE OF    NUMBER OF    EXERCISE
                 NAME                     GRANT      OPTIONS    PRICE/SHARE
- ---------------------------------------  --------   ---------   -----------
<S>                                      <C>        <C>         <C>
Bill Sickler...........................    5/8/96    200,000      $0.0825
                                          5/13/98    100,000         2.00
                                           5/4/99    125,000         9.00
Alistair Black.........................   5/13/98    100,000         2.00
                                           5/4/99     15,000         9.00
Howey Chin.............................   4/19/97     76,000         0.27
                                         11/19/98     20,000         3.10
                                           5/4/99     15,000         9.00
Christine E. Munson....................   3/19/97    180,000         0.27
                                         11/19/98     20,000         3.10
                                           5/4/99     15,000         9.00
Kurt Chan..............................    4/9/97     76,000         0.27
                                         11/19/98     20,000         3.10
                                           5/4/99     15,000         9.00
Wayne Rickard..........................    4/9/97     76,000         0.27
                                         11/19/98     20,000         3.10
                                          1/21/99     25,000         3.10
                                           5/4/99     15,000         9.00
Kent Bridges...........................    1/9/97    340,000         0.18
                                         11/19/98     20,000         3.10
                                           5/4/99     15,000         9.00
David Tang.............................    1/9/97     47,000         0.18
                                         10/31/97     20,000         0.72
                                          3/26/98     43,000         2.00
                                         11/19/98     30,000         3.10
                                           5/4/99     50,000         9.00
William Hubbard........................   9/16/97    155,000         0.72
                                         11/19/98     20,000         3.10
                                           5/4/99     15,000         9.00
</TABLE>

RELATIONSHIP WITH SEAGATE TECHNOLOGY, INC.

     We have developed a strategic partnership with Seagate Technology, Inc.
pursuant to which we have collaborated with Seagate Technology on the
development of industry standards, the design and development of new SAN
products, the interoperability of products, strategic planning and SAN market
development. In addition, Seagate Technology has made several investments in us
as described below. Stephen J. Luczo, one of our directors, is also the chief
executive officer of Seagate Technology.

     On May 21, 1997, we sold 2,092,234 shares of Series F preferred stock at a
price per share of $4.78 to Seagate Technology for an aggregate purchase price
of $10,000,879. On June 16, 1998, we sold 652,569 shares of Series G preferred
stock at a price per share of $7.65 to Seagate Technology for an aggregate
purchase price of $4,992,153.

     On September 18, 1998, we entered into a $15,000,000 convertible note
purchase agreement with Seagate Technology. The convertible note bears simple
interest of 5.75% per annum with principal and interest maturing on September
18, 2001. We have the option to convert any portion of the then outstanding
balance of principal and interest into

                                       66
<PAGE>   67

Series G preferred stock, or common stock after completion of this offering, at
a price per share of $7.65. Accrued interest must be converted prior to any
principal. We may, upon thirty days written notice to Seagate Technology, prepay
any portion of the convertible note in cash. In the event of a default, as
defined in the agreement, Seagate Technology may declare all outstanding
interest and principal immediately due and payable in cash. In the event we
become subject to insolvency proceedings, the outstanding principal and accrued
interest will become immediately due and payable.

     On October 12, 1998, we converted approximately $59,000 of accrued interest
and approximately $1,797,000 of principal into 242,694 shares of Series G
preferred stock. As of June 30, 1999, the total amount of outstanding principal
and accrued interest was $13,743,225.

     Pursuant to an agreement that we entered into with Seagate Technology and a
third-party investor (which third-party investor subsequently sold all of its
shares of our common stock to funds affiliated with New Enterprise Associates
and ONSET Ventures), on October 12, 1998, Seagate Technology has the right to
maintain its current percentage interest in our common stock of 19.9%.
Accordingly, within 30 days of the closing of this offering, Seagate Technology
will have the right to purchase shares of our common stock at the initial public
offering purchase price less underwriting discounts and commissions as long as
the percentage of outstanding common stock they own does not exceed 19.9%.
Seagate Technology is obligated to first convert interest and principal owing
under its convertible note into shares of common stock before it purchases
additional shares of common stock to maintain its percentage interest. The
rights of Seagate Technology to maintain terminate 30 days after the closing of
this offering.

     Also pursuant to this stockholders agreement, Seagate Technology has agreed
to certain restrictions on its ownership of our common stock. Specifically,
unless our board of directors consents, Seagate Technology has agreed not to:

     - acquire beneficial ownership of any of our shares of capital stock if
       after acquiring the shares, Seagate Technology would beneficially own
       more than 19.9% of our outstanding voting stock;

     - form, join or in any way participate in a group acting together for the
       purpose of acquiring, holding or disposing of shares of our capital stock
       if the group beneficially owns more than 5% of our outstanding voting
       stock;

     - submit any resolution to our stockholders or become a participant in a
       proxy solicitation in opposition to the recommendation of a majority of
       our directors; or

     - enter into any voting arrangement with respect to any shares of our
       capital stock.

     In addition, if Seagate Technology acquires more than 19.9% of our voting
stock we have the right to purchase from Seagate Technology a sufficient number
of shares of voting stock so as to reduce the voting stock held by Seagate
Technology to no more than 19.9% of our outstanding voting stock. To purchase
shares held by Seagate Technology pursuant to this right, we will have to pay
the average per share cash price paid by Seagate Technology calculated on a last
purchased, first sold basis.

     We intend to convert a portion of the unpaid principal and interest on our
convertible note sufficient to maintain Seagate Technology's holdings of our
common stock at 19.9%. In this prospectus we have assumed, based upon the number
of shares of our common stock outstanding as of June 30, 1999, that we will
convert approximately $7,994,250 of

                                       67
<PAGE>   68

our convertible note into 1,045,000 shares of our common stock. Accordingly,
following the conversion of this amount, there would be $5,748,975 of our
convertible note outstanding, which would be convertible into 751,500 shares of
our common stock.

     These limitations on Seagate Technology's ownership of our capital stock
expire upon the earlier of (1) three years after the closing of this offering,
(2) when a tender offer is made for not less than 50% of our outstanding shares
or (3) when another entity or group acquires not less than 25% ownership of the
total combined voting power of all of our outstanding shares.

     Pursuant to the stockholders' agreement, Seagate Technology agreed that it
will not nor will it permit any of its affiliates to sell or transfer any shares
of our capital stock to a person or entity that is engaged in or has publicly
announced its intention to enter into the business of developing, manufacturing,
marketing or selling storage area networks.

     In addition, for so long as Seagate Technology owns at least 7% of our
outstanding voting stock, Seagate Technology agreed that it will not nor will it
permit any of its affiliates to sell or transfer any shares of our capital
stock, except under the following circumstances:

     - to a person or entity who owned our voting stock immediately prior to the
       closing of this offering;

     - to us or to any person approved by us;

     - pursuant to a bona fide public offering registered under the Securities
       Act;

     - pursuant to Rule 144 under the Securities Act;

     - pursuant to a bona fide pledge of shares of our capital stock to an
       institutional lender to secure a loan, guarantee or other financial
       support, provided that the lender agrees to hold such stock subject to
       the same restrictions applicable to Seagate Technology or the other
       investor;

     - in the event of a merger or consolidation in which we are acquired by
       another corporation, or pursuant to a plan for our liquidation;

     - to a wholly-owned subsidiary that has executed an agreement to be bound
       by the same restrictions applicable to Seagate Technology or the other
       investor;

     - sales into any tender or exchange offer (A) which is made by us or on our
       behalf; (B) which is made by another person or group and is not opposed
       by our board of directors; or (C) subject to our right of first refusal,
       which is made by another person or group and which would result in such
       person or group owning more than 50% of our total outstanding voting
       stock; or

     - public distributions, provided that, in cases other than public
       distributions underwritten by an underwriter selected by us, no single
       purchaser is known to be acquiring more than 5% of our outstanding
       capital stock in the distribution.

     Pursuant to the stockholders' agreement, Seagate Technology granted us
certain rights of first refusal with respect to any shares of our common stock
that they will hold immediately after the closing of this offering or those
shares of common stock issuable to Seagate Technology upon conversion of the
convertible note we issued to Seagate Technology. With respect to these shares,
we have a right of first refusal to purchase any of these shares sold by Seagate
Technology for so long as Seagate Technology owns at

                                       68
<PAGE>   69

least 7% of our outstanding voting stock. Certain sales of our voting stock by
Seagate Technology, including sales through a registered public offering, are
not subject to this right of first refusal.

INDEMNIFICATION AGREEMENTS

     We have entered into indemnification agreements with each of our directors
and officers. Such indemnification agreements will require us to indemnify our
directors and officers to the fullest extent permitted by Delaware law. See
"Management -- Limitations on Liability and Indemnification."

     All future transactions, including any loans from our company to our
officers, directors, principal stockholders or affiliates, will be approved by a
majority of the board of directors, including a majority of the independent and
disinterested members of the board of directors or, if required by law, a
majority of disinterested stockholders, and will be on terms no less favorable
to our company than could be obtained from unaffiliated third parties.

                                       69
<PAGE>   70

                             PRINCIPAL STOCKHOLDERS

     The following table sets forth information known to us with respect to the
beneficial ownership of our common stock as of June 30, 1999, and as adjusted to
reflect the sale of common stock offered hereby by (1) each stockholder known by
us to own beneficially more than 5% of current common stock, (2) each Named
Executive Officer, (3) each of our directors and (4) all current directors and
executive officers as a group.

<TABLE>
<CAPTION>
                                                                    PERCENTAGE
                                                                    OF SHARES
                                                NUMBER OF       OUTSTANDING(1)(2)
                                                  SHARES       --------------------
                                               BENEFICIALLY     BEFORE      AFTER
          NAME OF BENEFICIAL OWNER               OWNED(1)      OFFERING    OFFERING
          ------------------------             ------------    --------    --------
<S>                                            <C>             <C>         <C>
Stephen Luczo(3).............................    3,863,924       19.3%       20.0%(4)
  c/o Seagate Technology, Inc.
  920 Disc Drive, Building One
  Scotts Valley, CA 95066
Seagate Technology, Inc......................    3,847,987       19.2        19.9(4)
  920 Disc Drive, Building One
  Scotts Valley, CA 95066
Peter Morris(5)..............................    2,455,707       12.3        10.0
  c/o New Enterprise Associates
  2490 Sand Hill Road
  Menlo Park, CA 94025
Entities associated with New Enterprise
  Associates VI, Limited Partnership(6)......    2,450,707       12.2        10.0
  2490 Sand Hill Road
  Menlo Park, CA 94025
Alistair Black(7)............................    1,731,353        8.6         7.0
Rob Kuhling(8)...............................    1,716,385        8.6         7.0
  c/o ONSET Ventures
  2490 Sand Hill Road
  Menlo Park, CA 94025
Entities associated with ONSET Enterprise(8)
  Associates II, L.P.........................    1,711,385        8.5         7.0
  2490 Sand Hill Road
  Menlo Park, CA 94025
Denny R. Ko(9)...............................    1,606,206        8.0         6.5
  c/o Dynamics Technology, Inc.
  21311 Hawthorne Boulevard
  Suite 300
  Torrance, CA 90503-5610
Dynamics Technology, Inc.(10)................    1,601,206        8.0         6.5
  21311 Hawthorne Boulevard
  Suite 300
  Torrance, CA 90503-5610
Bill Sickler(11).............................    1,417,077        7.0         5.7
Milton Chang.................................    1,228,166        6.1         5.0
  c/o New Focus, Inc.
  2630 Walsh Avenue
  Santa Clara, CA 95051
</TABLE>

                                       70
<PAGE>   71

<TABLE>
<CAPTION>
                                                                    PERCENTAGE
                                                                    OF SHARES
                                                NUMBER OF       OUTSTANDING(1)(2)
                                                  SHARES       --------------------
                                               BENEFICIALLY     BEFORE      AFTER
          NAME OF BENEFICIAL OWNER               OWNED(1)      OFFERING    OFFERING
          ------------------------             ------------    --------    --------
<S>                                            <C>             <C>         <C>
Kurt Chan(12)................................      311,728        1.6         1.3
Wayne Rickard(13)............................      283,291        1.4         1.1
Kent Bridges(14).............................      251,353        1.1         0.9
All directors and executive officers as a
  group
  (14 persons)(15)...........................   15,417,123       72.6        63.9(4)
</TABLE>

- -------------------------
 (1) Beneficial ownership is determined in accordance with the rules of the
     Securities and Exchange Commission. In computing the number of shares
     beneficially owned by a person and the percentage ownership of that person,
     shares of common stock subject to options or warrants held by that person
     that are currently exercisable or will become exercisable within 60 days
     after June 30, 1999 are deemed outstanding, while such shares are not
     deemed outstanding for purposes of computing percentage ownership of any
     other person. Percentage of beneficial ownership is based upon 20,042,393
     shares of common stock outstanding prior to this offering and 24,587,393
     shares of common stock outstanding after this offering. Unless otherwise
     indicated in the footnotes below, the persons and entities named in the
     table have sole voting and investment power with respect to all shares
     beneficially owned, subject to community property laws where applicable.
     The number of shares beneficially owned assumes the conversion of all
     outstanding shares of preferred stock into common stock as of June 30,
     1999.

 (2) Assumes no exercise of the underwriters' over-allotment option.

 (3) Mr. Luczo is the chief executive officer of Seagate and a director of our
     company. Represents 3,847,987 shares held by Seagate, 8,333 shares of
     common stock held by Mr. Luczo and 7,604 shares issuable upon exercise of
     options held by Mr. Luczo exercisable within 60 days of June 30, 1999. Mr.
     Luczo disclaims beneficial ownership of shares held by Seagate.

 (4) We intend to convert a portion of the unpaid principal and interest on our
     convertible note sufficient to maintain Seagate Technology's holdings of
     our common stock at 19.9%. Based upon the number of shares of our common
     stock outstanding at June 30, 1999, at the completion of this offering we
     would convert $7,994,250 of this convertible note into 1,045,000 shares of
     our common stock.

 (5) Mr. Morris is a general partner of New Enterprise Associates and a director
     of our company. Represents 1,944,446 shares held by New Enterprise
     Associates VI, Limited Partnership, 459,317 shares held by New Enterprise
     Associates VIII, Limited Partnership, 44,166 shares held by NEA Presidents
     Fund, L.P., 2,778 shares held by NEA Ventures 1996, L.P. and 5,000 shares
     issuable upon exercise of options held by Mr. Morris exercisable within 60
     days of June 30, 1999. Mr. Morris disclaims beneficial ownership of shares
     held by these entities, except for his proportional interest arising from
     his partnership interest in such funds.

 (6) Represents 1,944,446 shares held by New Enterprise Associates VI, Limited
     Partnership, 459,317 shares held by New Enterprise Associates VIII, Limited
     Partnership, 44,166 shares held by NEA Presidents Fund, L.P. and 2,778
     shares held by NEA Ventures 1996, L.P.

                                       71
<PAGE>   72

 (7) Represents 211,353 shares issuable upon exercise of options held by Dr.
     Black exercisable within 60 days of June 30, 1999, 1,482,964 shares held by
     The Savage/ Black Living Trust, Alistair D. Black and Deborah A. Savage,
     Trustees, 18,518 shares held by Alistair Black, custodian for Duncan Oliver
     Black, under the California Uniform Transfers to Minors Act and 18,518
     shares held by Alistair Black, custodian for Dylan Savage Black, under the
     California Uniform Transfers to Minors Act.

 (8) Mr. Kuhling is a general partner of ONSET Ventures and a director of our
     company. Represents 1,388,888 shares held by ONSET Enterprise Associates
     II, L.P., 322,497 shares held by ONSET Enterprise Associates III, L.P. and
     5,000 shares issuable upon exercise of options held by Mr. Kuhling within
     60 days of June 30, 1999. Mr. Kuhling disclaims beneficial ownership of
     shares held by this entity, except for his proportional interest arising
     from his partnership interest in ONSET Ventures.

 (9) Dr. Ko is the chairman of Dynamics Technology, Inc. and a director of our
     company. Represents 1,579,206 shares held by Dynamics Technology, Inc.,
     22,000 shares issuable upon exercise of options held by Dynamics
     Technology, Inc. and 5,000 shares issuable upon options held by Dr. Ko
     exercisable within 60 days of June 30, 1999. Dr. Ko disclaims beneficial
     ownership of the shares held by this entity except to the extent of his
     proportional interest therein.

(10) Represents 1,579,206 shares held by Dynamics Technology, Inc. and 22,000
     shares issuable upon exercise of options held by Dynamics Technology, Inc.
     exercisable within 60 days of June 30, 1999.

(11) Represents 97,395 shares issuable upon exercise of options held by Mr.
     Sickler exercisable within 60 days of June 30, 1999, 1,299,783 shares held
     by K. William Sickler and Gail A. Sickler, Trustees UTA Dated July 16,
     1992, 6,270 shares held by K. William Sickler, Trustee UA 10-14-92 Kenneth
     J. Sickler Grandchildren's Trust Agreement, 4,543 shares held by K. William
     Sickler, Trustee, or his successor under the Brett Ellen Sickler Trust,
     4,543 shares held by K. William Sickler, Trustee, or his successor under
     the Cole William Sickler Trust, and 4,543 shares held by K. William
     Sickler, Trustee, or his successor under the Joanna Jackson Sickler Trust.
     Of the 1,299,783 shares held by K. William Sickler and Gail A. Sickler,
     Trustees UTA dated July 16, 1992, 275,000 shares are subject to our right
     of repurchase as of June 30, 1999, which right lapses over time.

(12) Includes 20,833 shares subject to our right of repurchase as of June 30,
     1999, which right lapses over time, and 111,728 shares issuable upon
     exercise of options held by Mr. Chan exercisable within 60 days of June 30,
     1999.

(13) Includes 233,291 shares issuable upon exercise of options held by Mr.
     Rickard exercisable within 60 days of June 30, 1999.

(14) Includes 181,353 shares issuable upon exercise of options held by Mr.
     Bridges exercisable within 60 days of June 30, 1999.

(15) Includes shares described in footnotes 3, 5, 7, 8, 9 and 11 - 14 that are
     beneficially owned by the directors and officers and an aggregate of
     1,185,303 shares issuable upon exercise of options held by these
     individuals exercisable within 60 days of June 30, 1999. Also includes an
     aggregate of 295,833 shares subject to our right of repurchase as of June
     30, 1999, which right lapses over time.

                                       72
<PAGE>   73

                          DESCRIPTION OF CAPITAL STOCK

GENERAL

     Upon the completion of this offering, we will be authorized to issue
150,000,000 shares of common stock, $0.005 par value, and 10,000,000 shares of
undesignated preferred stock, $0.005 par value. The following description of our
capital stock does not purport to be complete. This description is subject to
and qualified in its entirety by our certificate of incorporation and bylaws,
which are included as exhibits to the registration statement of which this
prospectus forms a part, and by the provisions of applicable Delaware law.

COMMON STOCK

     As of June 30, 1999, there were 20,042,393 shares of common stock
outstanding that were held of record by approximately 140 stockholders (assuming
conversion of all shares of preferred stock outstanding as of June 30, 1999).
There will be 24,587,393 shares of common stock outstanding (assuming no
exercise of the underwriters' over-allotment option and no exercise of
outstanding options) after giving effect to the sale of common stock offered in
this offering and the conversion of an aggregate of approximately $7,994,250 of
our convertible note (including accrued interest) into an aggregate of 1,045,000
shares. There are outstanding options to purchase a total of 4,356,731 shares of
our common stock.

     The holders of common stock are entitled to one vote for each share held of
record on all matters submitted to a vote of the stockholders. Our stockholders
do not have cumulative voting rights in the election of directors. Accordingly,
holders of a majority of the shares voting are able to elect all of the
directors. Subject to preferences that may be granted to any then outstanding
preferred stock, holders of common stock are entitled to receive ratably only
those dividends as may be declared by the board of directors out of funds
legally available therefor, as well as any distributions to the stockholders.
See "Dividend Policy." In the event of a liquidation, dissolution or winding up
of Gadzoox, holders of common stock are entitled to share ratably in all of our
assets remaining after we pay our liabilities and distribute the liquidation
preference of any then outstanding preferred stock. Holders of common stock have
no preemptive or other subscription or conversion rights.

PREFERRED STOCK

     Our certificate of incorporation filed in connection with this offering
provides that our board of directors has the authority, without action by the
stockholders, to designate and issue preferred stock in one or more series and
to designate the rights, preferences and privileges of each series. The rights,
preferences and privileges of each series of preferred stock may be greater than
the rights of our common stock. It is not possible to state the actual effect of
the issuance of any shares of preferred stock upon the rights of holders of our
common stock until the board of directors determines the specific rights of the
holders of any preferred stock that may be issued. However, the effects might
include, among other things: (1) restricting dividends on the common stock, (2)
diluting the voting power of the common stock, (3) impairing the liquidation
rights of the common stock and (4) delaying or preventing a change in our
control without further action by the stockholders.

                                       73
<PAGE>   74

Upon the closing of this offering, no shares of preferred stock will be
outstanding, and we have no present plans to issue any shares of preferred
stock.

WARRANTS

     As of the closing of this offering, there will be warrants to purchase
28,242 shares of our common stock at an exercise price of $4.78, which will
remain exercisable until July 30, 2007. In addition, as of the closing of this
offering, there will be warrants to purchase 19,607 shares of our common stock
at an exercise price of $7.65, which will remain exercisable until July 6, 2003.

REGISTRATION RIGHTS

     Pursuant to a registration and information rights agreement entered into
between us and holders of 3,026,364 shares of common stock and holders of
13,907,399 shares of common stock issuable upon conversion of our Series A,
Series B, Series C, Series D, Series E, Series F, Series G and Series H
preferred stock and upon conversion of the convertible note held by Seagate, we
are obligated, under limited circumstances and subject to specified conditions
and limitations, to use our best efforts to register the registrable shares.

     We must use our best efforts to register shares of the registrable shares:

     - if we receive written notice from holders of 50% or more of the
       registrable shares requesting that we effect a registration with respect
       to not less than 20% of the registrable shares then held by the holders
       requesting registration (or a lesser percentage where the reasonably
       anticipated price to the public of the sale of the registrable shares
       will exceed $2,000,000);

     - if we decide to register our own securities (except in connection with
       this offering); or

     - if (1) we receive written notice from holders of 25% or more of the
       registrable shares requesting that we effect a registration on Form S-3
       (a shortened form of registration statement) with respect to shares of
       the registrable shares, the reasonably anticipated price to the public of
       which exceeds $1,000,000 and (2) we are then eligible to use Form S-3
       (which at the earliest will occur twelve calendar months after the
       closing of this offering).

     However, in addition to certain other conditions and limitations, if
requested to register shares of registrable shares, we can delay registration
not more than once in any 12-month period and for not more than 90 days. In
addition, unless the request is for a registration on Form S-3, we are obligated
to effect only two registrations requested by the holders of the registrable
shares. In any case where we decide to register our own securities pursuant to
an underwritten offering, the managing underwriter may limit the registrable
shares to be included in the registration to not less than 10% of the total
value of securities to be registered.

     These registration rights terminate with respect to each registrable share
upon the first to occur of when the holder can transfer his or her registrable
shares pursuant to Rule 144 or five years after the closing of this offering. In
addition, the holders of these registration rights have entered into lockup
agreements and waived their registration rights until 180 days following the
closing of this offering.

                                       74
<PAGE>   75

STOCKHOLDERS' AGREEMENT

     We entered into a stockholders' agreement with Seagate Technology, Inc.
pursuant to which we granted it certain rights, and Seagate Technology agreed to
limitations and restrictions with respect to the shares of our capital stock
that it holds. For a more complete discussion of this stockholders' agreement,
see "Certain Transactions -- Relationship with Seagate Technology, Inc."

DELAWARE ANTI-TAKEOVER LAW AND CERTAIN CHARTER AND BYLAW PROVISIONS

     Certain provisions of Delaware law and our certificate of incorporation and
bylaws could make more difficult the acquisition of our company by means of a
tender offer, a proxy contest or otherwise and the removal of incumbent officers
and directors. These provisions, summarized below, may discourage certain types
of coercive takeover practices and inadequate takeover bids and encourage
persons seeking to acquire control of our company to first negotiate with our
company. We believe that the benefits of increased protection of our company's
potential ability to negotiate with the proponent of an unfriendly or
unsolicited proposal to acquire or restructure our company outweigh the
disadvantages of discouraging such proposals because, among other things,
negotiation of such proposals could result in an improvement of their terms.

     We are subject to Section 203 of the Delaware General Corporation Law, an
anti-takeover law. In general, Section 203 prohibits a publicly held Delaware
corporation from engaging in a "business combination" with an "interested
stockholder" for a period of three years following the date the person became an
interested stockholder, unless (with certain exceptions) the "business
combination" or the transaction in which the person became an interested
stockholder is approved in a prescribed manner. Generally, a "business
combination" includes a merger, asset or stock sale, or other transaction
resulting in a financial benefit to the interested stockholder. Generally, an
"interested stockholder" is a person who, together with affiliates and
associates, owns (or within three years prior to the determination of interested
stockholder status, did own) 15% or more of a corporation's voting stock. The
existence of this provision would be expected to have an anti-takeover effect
with respect to transactions not approved in advance by the board of directors,
including discouraging attempts that might result in a premium over the market
price for the shares of common stock held by stockholders.

     Our certificate of incorporation eliminates the right of stockholders to
act by written consent without a meeting. The certificate of incorporation and
bylaws do not provide for cumulative voting in the election of directors. The
authorization of undesignated preferred stock makes it possible for the board of
directors to issue preferred stock with voting or other rights or preferences
that could impede the success of any attempt to change control of our company.
These and other provisions may have the effect of deterring hostile takeovers or
delaying changes in control or management of our company. The amendment of any
of these provisions would require approval by holders of at least 66 2/3% of our
outstanding common stock.

     Our board of directors will be divided into three classes, each with
staggered three-year terms. As a result, only one class of directors will be
elected at each annual meeting of our stockholders, with the other classes
continuing for the remainder of their respective three-year terms.

                                       75
<PAGE>   76

TRANSFER AGENT AND REGISTRAR

     The transfer agent and registrar for the common stock is BankBoston, N.A.

NATIONAL MARKET LISTING

     Our common stock is listed on The Nasdaq Stock Market's National Market
under the symbol "ZOOX."

                                       76
<PAGE>   77

                        SHARES ELIGIBLE FOR FUTURE SALE

     Immediately prior to this offering, there was no public market for our
common stock. Future sales of substantial amounts of our common stock in the
public market could adversely affect the market price of our common stock.

     Upon completion of this offering, based on shares outstanding as of June
30, 1999, we will have outstanding 24,587,393 shares of common stock, assuming
(1) the issuance of 3,500,000 shares of common stock in this offering, (2) no
exercise of the underwriters' over-allotment option, (3) conversion of
$7,994,250 of our convertible note into 1,045,000 shares of common stock and (4)
no exercise of options or warrants after June 30, 1999. All of the 3,500,000
shares sold in this offering will be freely tradable without restriction or
further registration under the Securities Act. However, the sale of any of these
shares if purchased by "affiliates" as that term is defined in Rule 144 are
subject to certain limitations and restrictions that are described below.

     The remaining 21,087,393 shares of common stock held by existing
stockholders were issued and sold by us in reliance on exemptions from the
registration requirements of the Securities Act. These shares are "restricted
shares" as that term is defined in Rule 144 and therefore may not be sold
publicly unless they are registered under the Securities Act or are sold
pursuant to Rule 144 or another exemption from registration. In addition, our
directors and officers as well as other stockholders and optionholders have
entered into "lock-up agreements" with the underwriters. These lock-up
agreements provide that, except under limited exceptions, the stockholder may
not offer, sell, contract to sell or otherwise dispose of any of our common
stock or securities that are convertible into or exchangeable for, or that
represent the right to receive, our common stock for a period of 180 days after
the date of this prospectus. Credit Suisse First Boston, however, may in its
sole discretion, at any time without notice, release all or any portion of the
shares subject to lock-up agreements. Accordingly, of the remaining 21,087,393
shares, 20,162,142 shares will become eligible for sale 180 days after the
effective date subject to Rules 144 and 701.

     As of June 30, 1999, there were a total of 4,331,731 shares of common stock
subject to outstanding options under our Amended and Restated 1993 Stock Plan,
1,646,899 of which were vested, and nearly all of which are subject to lock-up
agreements. In addition, as of June 30, 1999, there were a total of 25,000
shares of common stock subject to outstanding options under our 1999 Director
Option Plan, all of which were vested and all of which were subject to lock-up
agreements. Immediately after the completion of the offering, we intend to file
registration statements on Form S-8 under the Securities Act to register all of
the shares of common stock issued or reserved for future issuance under our
Amended and Restated 1993 Stock Plan, our 1999 Employee Stock Purchase Plan and
our 1999 Director Option Plan. On the date 180 days after the effective date of
the offering, the date that the lock-up agreements expire, a total of 2,423,324
shares of our common stock subject to outstanding options will be vested. After
the effective dates of the registration statements on Form S-8, shares purchased
upon exercise of options granted pursuant to our Amended and Restated 1993 Stock
Plan, our 1999 Employee Stock Purchase Plan and our 1999 Director Option Plan
generally would be available for resale in the public market.

                                       77
<PAGE>   78

Rule 144

     In general, under Rule 144 as currently in effect, beginning 90 days after
the date of this prospectus, a person who has beneficially owned shares of our
common stock for at least one year would be entitled to sell, within any
three-month period, a number of shares that does not exceed the greater of:

     - 1% of the number of shares of common stock then outstanding, which will
       equal approximately 245,874 shares immediately after this offering; or

     - the average weekly trading volume of the common stock on the Nasdaq Stock
       Market's National Market during the four calendar weeks preceding the
       filing of a notice on Form 144 with respect to such sale.

     Sales under Rule 144 are also subject to certain other requirements
regarding the manner of sale, notice filing and the availability of current
public information about us.

Rule 144(K)

     Under Rule 144(k), a person who is not deemed to have been one of our
"affiliates" at any time during the 90 days preceding a sale, and who has
beneficially owned the shares proposed to be sold for at least two years,
generally including the holding period of any prior owner other than an
"affiliate," is entitled to sell such shares without complying with the manner
of sale, notice filing, volume limitation or notice provisions of Rule 144.
Therefore, unless otherwise restricted, "144(k) shares" may be sold immediately
upon the completion of this offering.

Rule 701

     In general, under Rule 701, any of our employees, directors, officers,
consultants or advisors who purchase shares from us in connection with a
compensatory stock or option plan or other written agreement before the
effective date of this offering is entitled to resell such shares 90 days after
the effective date of this offering in reliance on Rule 144, without having to
comply with certain restrictions, including the holding period, contained in
Rule 144.

     The SEC has indicated that Rule 701 will apply to typical stock options
granted by an issuer before it becomes subject to the reporting requirements of
the Securities Exchange Act of 1934, along with the shares acquired upon
exercise of such options (including exercises after the date of this
prospectus). Securities issued in reliance on Rule 701 are restricted securities
and, subject to the contractual restrictions described above, beginning 90 days
after the date of this prospectus, may be sold by persons other than
"affiliates," as defined in Rule 144, subject only to the manner of sale
provisions of Rule 144. Securities issued in reliance on Rule 701 may be sold by
"affiliates" under Rule 144 without compliance with its one year minimum holding
period requirement.

                                       78
<PAGE>   79

                                  UNDERWRITING

     Under the terms and subject to the conditions contained in an underwriting
agreement dated July 19, 1999, we have agreed to sell to the underwriters named
below, for whom Credit Suisse First Boston Corporation, Hambrecht & Quist LLC
and Morgan Keegan & Company, Inc. are acting as representatives, the following
respective numbers of shares of common stock:

<TABLE>
<CAPTION>
                                                               Number
                        Underwriter                           of Shares
                        -----------                           ---------
<S>                                                           <C>
Credit Suisse First Boston Corporation......................  1,487,503
Hambrecht & Quist LLC.......................................    892,500
Morgan Keegan & Company, Inc................................    595,000
BancBoston Robertson Stephens Inc. .........................     58,333
Dain Rauscher Wessels.......................................     58,333
  a division of Dain Rauscher Incorporated
Deutsche Bank Securities Inc. ..............................     58,333
Invemed Associates, Inc. ...................................     58,333
Needham & Company, Inc. ....................................     58,333
Charles Schwab & Co., Inc. .................................     58,333
SG Cowen Securities Corporation.............................     58,333
SoundView Technology Group, Inc. ...........................     58,333
U.S. Bancorp Piper Jaffray Inc. ............................     58,333
                                                              ---------
          Total.............................................  3,500,000
                                                              =========
</TABLE>

     The underwriting agreement provides that the underwriters are obligated to
purchase all the shares of common stock in the offering if any are purchased,
other than those shares covered by the over-allotment option described below.
The underwriting agreement also provides that if an underwriter defaults, the
purchase commitments of non-defaulting underwriters may be increased or the
offering of common stock may be terminated.

     We have granted to the underwriters a 30-day option to purchase on a pro
rata basis up to 525,000 additional shares at the initial public offering price
less the underwriting discounts and commissions. The option may be exercised
only to cover any over-allotments of common stock.

     The underwriters propose to offer the shares of common stock initially at
the public offering price on the cover page of this prospectus and to selling
group members at that price less a concession of $0.88 per share. The
underwriters and selling group members may allow a discount of $0.10 per share
on sales to other broker/dealers. After the initial public offering, the public
offering price and concession and discount to dealers may be changed by the
representatives.

     The following table summarizes the compensation and estimated expenses we
will pay.

<TABLE>
<CAPTION>
                                        Per Share                           Total
                             -------------------------------   -------------------------------
                                Without            With           Without            With
                             Over-allotment   Over-allotment   Over-allotment   Over-allotment
                             --------------   --------------   --------------   --------------
<S>                          <C>              <C>              <C>              <C>
Underwriting Discounts and
Commissions paid by us.....     $   1.47         $   1.47        $5,145,000       $5,916,750
Expenses payable by us.....     $   0.25         $   0.22        $  875,000       $  875,000
</TABLE>

     The underwriters have informed us that they do not expect discretionary
sales to exceed 5% of the shares of common stock being offered.

                                       79
<PAGE>   80

     We and our executive officers, directors and certain other securityholders
of Gadzoox have agreed not to offer, sell, contract to sell, announce an
intention to sell, pledge or otherwise dispose of, directly or indirectly, or
file with the Securities and Exchange Commission a registration statement under
the Securities Act relating to, any shares of common stock or securities
convertible into or exchangeable or exercisable for any common stock without the
prior written consent of Credit Suisse First Boston Corporation for a period of
180 days after the date of this prospectus.

     The underwriters have reserved for sale, at the initial public offering
price up to 250,000 shares of the common stock for employees, directors and
certain other persons associated with us who have expressed an interest in
purchasing common stock in this offering. The number of shares available for
sale to the general public in this offering will be reduced to the extent these
persons purchase the reserved shares. Any reserved shares not so purchased will
be offered by the underwriters to the general public on the same terms as the
other shares.

     We have agreed to indemnify the underwriters against liabilities under the
Securities Act, or contribute to payments which the underwriters may be required
to make in that respect.

     Our common stock is listed on The Nasdaq Stock Market's National Market
under the symbol "ZOOX."

     Prior to this offering, there has been no public market for our common
stock. The initial public offering price was determined by negotiation between
us and the underwriters. The principal factors considered in determining the
public offering price included: the information in this prospectus and otherwise
available to the underwriters; the history and the prospects for the industry in
which we will compete; the ability of our management; the prospects for our
future earnings; the present state of our development and our current financial
condition; the general condition of the securities markets at the time of this
offering; and the recent market prices of, and the demand for, publicly traded
common stock of generally comparable companies.

     The representatives, may engage in over-allotment, stabilizing
transactions, syndicate covering transactions and penalty bids in accordance
with Regulation M under the Exchange Act.

     - Over-allotment involves syndicate sales in excess of the offering size,
       which creates a syndicate short position.

     - Stabilizing transactions permit bids to purchase the underlying security
       so long as the stabilizing bids do not exceed a specified maximum.

     - Syndicate covering transactions involve purchases of the common stock in
       the open market after the distribution has been completed in order to
       cover syndicate short positions.

     - Penalty bids permit the representatives to reclaim a selling concession
       from a syndicate member when the common stock originally sold by the
       syndicate member are purchased in a syndicate covering transaction to
       cover syndicate short positions.

These stabilizing transactions, syndicate covering transactions and penalty bids
may cause the price of the common stock to be higher than it would otherwise be
in the absence of these transactions. These transactions may be effected on The
Nasdaq Stock Market's National Market or otherwise and, if commenced, may be
discontinued at any time.

                                       80
<PAGE>   81

                          NOTICE TO CANADIAN RESIDENTS

RESALE RESTRICTIONS

     The distribution of the common stock in Canada is being made only on a
private placement basis exempt from the requirement that we prepare and file a
prospectus with the securities regulatory authorities in each province where
trades of common stock are effected. Accordingly, any resale of the common stock
in Canada must be made in accordance with applicable securities laws which will
vary depending on the relevant jurisdiction, and which may require resales to be
made in accordance with available statutory exemptions or pursuant to a
discretionary exemption granted by the applicable Canadian securities regulatory
authority. Purchasers are advised to seek legal advice prior to any resale of
the common stock.

REPRESENTATIONS OF PURCHASERS

     Each purchaser of common stock in Canada who receives a purchase
confirmation will be deemed to represent to us and the dealer from whom the
purchase confirmation is received that (i) the purchaser is entitled under
applicable provincial securities laws to purchase the common stock without the
benefit of a prospectus qualified under the securities laws, (ii) where required
by law, that the purchaser is purchasing as principal and not as agent, and
(iii) the purchaser has reviewed the text above under "Resale Restrictions."

RIGHTS OF ACTION (ONTARIO PURCHASERS)

     The securities being offered are those of a foreign issuer and Ontario
purchasers will not receive the contractual right of action prescribed by
Ontario securities law. As a result, Ontario purchasers must rely on other
remedies that may be available, including common law rights of action for
damages or rescission or rights of action under the civil liability provisions
of the U.S. federal securities laws.

ENFORCEMENT OF LEGAL RIGHTS

     All of the issuer's directors and officers as well as the experts named
herein may be located outside of Canada and, as a result, it may not be possible
for Canadian purchasers to effect service of process within Canada upon the
issuer or these persons. All or a substantial portion of the assets of the
issuer and these persons may be located outside of Canada and, as a result, it
may not be possible to satisfy a judgment against the issuer or these persons in
Canada or to enforce a judgment obtained in Canadian courts against the issuer
or these persons outside of Canada.

NOTICE TO BRITISH COLUMBIA RESIDENTS

     A purchaser of common stock to whom the Securities Act (British Columbia)
applies is advised that the purchaser is required to file with the British
Columbia Securities Commission a report within ten days of the sale of any
common stock acquired by such purchaser in this offering. This report must be in
the form attached to British Columbia Securities Commission Blanket Order BOR
#95/17, a copy of which may be obtained from us. Only one report must be filed
in respect of common stock acquired on the same date and under the same
prospectus exemption.

TAXATION AND ELIGIBILITY FOR INVESTMENT

     Canadian purchasers of common stock should consult with their own legal and
tax advisors with respect to the tax consequences of an investment in our common
stock in

                                       81
<PAGE>   82

their particular circumstances and with respect to the eligibility of our common
stock for investment by the purchaser under relevant Canadian legislation.

                                 LEGAL MATTERS

     The validity of the common stock offered hereby will be passed upon for
Gadzoox by Wilson Sonsini Goodrich & Rosati, Professional Corporation, Palo
Alto, California. Certain legal matters will be passed upon for the Underwriters
by Morrison & Foerster LLP, Palo Alto, California.

     As of the date of this prospectus, WS Investment Company 95B an investment
partnership composed of certain current and former members of and persons
associated with Wilson Sonsini Goodrich & Rosati, Professional Corporation, in
addition to certain current individual members of Wilson Sonsini Goodrich &
Rosati, Professional Corporation, beneficially own an aggregate of 39,138 shares
of Gadzoox common stock.

                       CHANGE IN INDEPENDENT ACCOUNTANTS

     Effective February 1998, Arthur Andersen LLP was engaged as our independent
accountants and replaced other auditors who were dismissed as our independent
accountants on the same date. The decision to change accountants was approved by
our board of directors. Arthur Andersen LLP's reports for each of the three
years in the period ended March 31, 1999, did not contain an adverse opinion or
disclaimer of opinion qualified or modified as to any uncertainty, audit scope
or accounting principle. During our last two fiscal years, there were no
disagreements with our former auditors on any matter of accounting principles or
practices, financial statement disclosure or auditing scope or procedure, which
disagreements if not resolved to the satisfaction of our former auditors, would
have caused them to make reference thereto in any of their reports. Our former
auditors have not audited or reported on any of the financial statements
included in this prospectus. Prior to February 1998, we had not consulted with
Arthur Andersen LLP on items that involved our accounting principles or the form
of audit opinion to be issued on our financial statements.

                                    EXPERTS

     The audited financial statements and schedule included in this prospectus
and elsewhere in the registration statement have been audited by Arthur Andersen
LLP, independent public accountants, as indicated in their reports with respect
thereto, and are included herein in reliance upon the authority of said firm as
experts in giving said reports.

                                       82
<PAGE>   83

                             ADDITIONAL INFORMATION

     We have filed with the Securities and Exchange Commission a Registration
Statement on Form S-1. This prospectus, which forms a part of the Registration
Statement, does not contain all the information included in the Registration
Statement. Certain information is omitted and you should refer to the
Registration Statement and its exhibits. With respect to references made in this
prospectus to any contract or other document of Gadzoox, such references are not
necessarily complete and you should refer to the exhibits attached to the
Registration Statement for copies of the actual contract or document. You may
review a copy of the Registration Statement, including exhibits and schedule
filed therewith, at the Securities and Exchange Commission's public reference
facilities in Room 1024, Judiciary Plaza, 450 Fifth Street, N.W., Washington,
D.C. 20549, and at the regional offices of the Securities and Exchange
Commission located at 7 World Trade Center, Suite 1300, New York, New York
10048, and Citicorp Center, 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661. You may also obtain copies of such materials from the Public
References Section of the Securities and Exchange Commission, Room 1024,
Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549, at prescribed
rates. The Securities and Exchange Commission maintains a Web site
(http://www.sec.gov) that contains reports, proxy and information statements and
other information regarding registrants, such as Gadzoox, that file
electronically with the Securities and Exchange Commission.

                                       83
<PAGE>   84

                             GADZOOX NETWORKS, INC.

                         INDEX TO FINANCIAL STATEMENTS

<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Report of Independent Public Accountants....................  F-2
Balance Sheets..............................................  F-3
Statements of Operations....................................  F-4
Statements of Stockholders' Equity..........................  F-5
Statements of Cash Flows....................................  F-6
Notes to Financial Statements...............................  F-7
</TABLE>

                                       F-1
<PAGE>   85

                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To the Board of Directors and Stockholders of Gadzoox Networks, Inc.:

     We have audited the accompanying balance sheets of Gadzoox Networks, Inc.,
(a Delaware corporation) as of March 31, 1998 and 1999, and the related
statements of operations, stockholders' equity and cash flows for each of the
three years in the period ended March 31, 1999. These financial statements are
the responsibility of the Company's management. Our responsibility is to express
an opinion on these financial statements based on our audits.

     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

     In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Gadzoox Networks, Inc. as of
March 31, 1998 and 1999, and the results of its operations and its cash flows
for each of the three years in the period ended March 31, 1999 in conformity
with generally accepted accounting principles.

                                    ARTHUR ANDERSEN LLP

San Jose, California
April 30, 1999

                                       F-2
<PAGE>   86

                             GADZOOX NETWORKS, INC.

                                 BALANCE SHEETS
               (IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                                         JUNE 30, 1999
                                                            MARCH 31,                      PRO FORMA
                                                       -------------------   JUNE 30,    STOCKHOLDERS'
                                                         1998       1999       1999     EQUITY (NOTE 9)
                                                       --------   --------   --------   ---------------
                                                                                    (UNAUDITED)
<S>                                                    <C>        <C>        <C>        <C>
ASSETS
Current assets:
  Cash and cash equivalents..........................  $  4,624   $ 12,202   $  8,845
  Accounts receivable, net of allowance of $65, $150
     and $150, respectively..........................     3,424      5,981      7,276
  Inventories........................................     3,463      5,306      3,932
  Prepaid expenses and other current assets..........       221        305        380
                                                       --------   --------   --------
          Total current assets.......................    11,732     23,794     20,433
Property and equipment, net..........................     3,125      4,553      4,590
Other assets.........................................        85        251        251
                                                       --------   --------   --------
                                                       $ 14,942   $ 28,598   $ 25,274
                                                       ========   ========   ========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Current portion of note payable....................  $    345   $    371   $    378
  Current portion of capital lease obligations.......       550      1,080      1,153
  Accounts payable...................................     3,302      4,488      3,513
  Compensation related accruals......................       767        705        806
  Deferred revenue and other.........................       383      1,238      1,427
                                                       --------   --------   --------
          Total current liabilities..................     5,347      7,882      7,277
Convertible note.....................................        --     13,554     13,743
Note payable, net of current portion.................       567        196         99
Capital lease obligations, net of current portion....       859      1,307      1,205
                                                       --------   --------   --------
          Total liabilities..........................     6,773     22,939     22,324
                                                       --------   --------   --------
Commitments and contingencies (Note 5)
Stockholders' equity:
  Convertible preferred stock, $0.005 par value;
     aggregate liquidation preference of $34,219 as
     of June 30, 1999
     Authorized -- 16,500,000 shares at June 30, 1999
       and 10,000,000 shares pro forma
     Issued and outstanding -- 12,227,822 shares,
       13,907,399 shares and 13,907,399 shares as of
       March 31, 1998, March 31, 1999 and June 30,
       1999, respectively; no shares pro forma.......        60         69         69      $     --
  Common stock, $0.005 par value
     Authorized -- 40,000,000 shares at June 30, 1999
       and 150,000,000 shares pro forma
     Issued and outstanding -- 5,078,328 shares,
       5,589,729 shares and 6,134,994 shares as of
       March 31, 1998, March 31, 1999 and June 30,
       1999, respectively; 20,042,393 shares pro
       forma.........................................        26         28         31           100
  Additional paid-in capital.........................    21,245     37,081     37,283        37,283
  Deferred compensation..............................        --     (2,425)    (2,103)       (2,103)
  Accumulated deficit................................   (13,162)   (29,094)   (32,330)      (32,330)
                                                       --------   --------   --------      --------
          Total stockholders' equity.................     8,169      5,659      2,950      $  2,950
                                                       --------   --------   --------      ========
                                                       $ 14,942   $ 28,598   $ 25,274
                                                       ========   ========   ========
</TABLE>

The accompanying notes to financial statements are an integral part of these
financial statements.

                                       F-3
<PAGE>   87

                             GADZOOX NETWORKS, INC.

                            STATEMENTS OF OPERATIONS
               (IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                   QUARTER ENDED
                                    YEAR ENDED MARCH 31,              JUNE 30,
                                -----------------------------    ------------------
                                 1997       1998       1999       1998       1999
                                -------   --------   --------    -------    -------
                                                                    (UNAUDITED)
<S>                             <C>       <C>        <C>         <C>        <C>
Net revenues..................  $   823   $  9,811   $ 24,821    $ 5,406    $ 9,211
Cost of revenues..............      483      7,898     18,638      4,181      5,414
                                -------   --------   --------    -------    -------
     Gross margin.............      340      1,913      6,183      1,225      3,797
                                -------   --------   --------    -------    -------
Operating expenses:
  Research and development....    2,168      7,178     13,928      3,112      3,917
  Sales and marketing.........    1,126      2,974      5,765      1,347      1,888
  General and
     administrative...........      902      1,774      1,649        262        764
  Amortization of deferred
     compensation.............       --         --        547         28        322
                                -------   --------   --------    -------    -------
     Total operating
       expenses...............    4,196     11,926     21,889      4,749      6,891
                                -------   --------   --------    -------    -------
Loss from operations..........   (3,856)   (10,013)   (15,706)    (3,524)    (3,094)
                                -------   --------   --------    -------    -------
Other income (expense), net:
  Sale of electronic testing
     equipment rights, net....    1,508         --         --         --         --
  Interest income.............      264        524        489         47        119
  Interest and other
     expense..................       (5)      (151)      (715)       (68)      (261)
                                -------   --------   --------    -------    -------
     Total other income
       (expense), net.........    1,767        373       (226)       (21)      (142)
                                -------   --------   --------    -------    -------
Net loss......................  $(2,089)  $ (9,640)  $(15,932)   $(3,545)   $(3,236)
                                =======   ========   ========    =======    =======
Basic net loss per share......  $ (0.59)  $  (2.41)  $  (3.33)   $ (0.79)   $ (0.58)
                                =======   ========   ========    =======    =======
Weighted average shares used
  in computing basic net loss
  per share...................    3,551      3,995      4,789      4,468      5,626
                                =======   ========   ========    =======    =======
Pro forma basic net loss per
  share (unaudited)...........                       $  (0.91)   $ (0.21)   $ (0.17)
                                                     ========    =======    =======
Weighted average shares used
  in computing pro forma basic
  net loss per share
  (unaudited).................                         17,594     16,789     19,533
                                                     ========    =======    =======
</TABLE>

The accompanying notes to financial statements are an integral part of these
financial statements.

                                       F-4
<PAGE>   88

                             GADZOOX NETWORKS, INC.

                       STATEMENTS OF STOCKHOLDERS' EQUITY
                      (IN THOUSANDS, EXCEPT SHARE AMOUNTS)

<TABLE>
<CAPTION>
                             CONVERTIBLE PREFERRED
                                     STOCK              COMMON STOCK      ADDITIONAL                                    TOTAL
                             ---------------------   ------------------    PAID-IN       DEFERRED     ACCUMULATED   STOCKHOLDERS'
                               SHARES      AMOUNT     SHARES     AMOUNT    CAPITAL     COMPENSATION     DEFICIT        EQUITY
                             -----------   -------   ---------   ------   ----------   ------------   -----------   -------------
<S>                          <C>           <C>       <C>         <C>      <C>          <C>            <C>           <C>
BALANCE AT MARCH 31,
  1996.....................   5,691,144      $28     4,152,000    $21      $ 3,243       $    --       $ (1,433)      $  1,859
  Issuance of common stock
    for cash...............          --       --     1,236,650      6           87            --             --             93
  Repurchase of common
    stock for cash.........          --       --      (400,000)    (2)          (8)           --             --            (10)
  Issuance of preferred
    stock for cash, net....   4,444,444       22            --     --        7,945            --             --          7,967
  Net loss.................          --       --            --     --           --            --         (2,089)        (2,089)
                             ----------      ---     ---------    ---      -------       -------       --------       --------
BALANCE AT MARCH 31,
  1997.....................  10,135,588       50     4,988,650     25       11,267            --         (3,522)         7,820
  Issuance of common stock
    for cash...............          --       --       146,000      1           51            --             --             52
  Repurchase of common
    stock for cash.........          --       --       (56,322)    --           (1)           --             --             (1)
  Issuance of preferred
    stock for cash, net....   2,092,234       10            --     --        9,928            --             --          9,938
  Net loss.................          --       --            --     --           --            --         (9,640)        (9,640)
                             ----------      ---     ---------    ---      -------       -------       --------       --------
BALANCE AT MARCH 31,
  1998.....................  12,227,822       60     5,078,328     26       21,245            --        (13,162)         8,169
  Issuance of common stock
    for cash...............          --       --       511,401      2          128            --             --            130
  Deferred compensation....          --       --            --     --        2,972        (2,972)            --             --
  Amortization of deferred
    compensation...........          --       --            --     --           --           547             --            547
  Issuance of preferred
    stock for cash, net....   1,436,883        8            --     --       10,881            --             --         10,889
  Issuance of preferred
    stock upon partial
    conversion of
    convertible note.......     242,694        1            --     --        1,855            --             --          1,856
  Net loss.................          --       --            --     --           --            --        (15,932)       (15,932)
                             ----------      ---     ---------    ---      -------       -------       --------       --------
BALANCE AT MARCH 31,
  1999.....................  13,907,399       69     5,589,729     28       37,081        (2,425)       (29,094)         5,659
  Issuance of common stock
    for cash (Unaudited)...          --       --       545,265      3          202            --             --            205
  Amortization of deferred
    compensation
    (Unaudited)............          --       --            --     --           --           322             --            322
  Net loss (Unaudited).....          --       --            --     --           --            --         (3,236)        (3,236)
                             ----------      ---     ---------    ---      -------       -------       --------       --------
BALANCE AT JUNE 30, 1999
  (UNAUDITED)..............  13,907,399      $69     6,134,994    $31      $37,283       $(2,103)      $(32,330)      $  2,950
                             ==========      ===     =========    ===      =======       =======       ========       ========
</TABLE>

The accompanying notes to financial statements are an integral part of these
financial statements.

                                       F-5
<PAGE>   89

                             GADZOOX NETWORKS, INC.

                            STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                                                       QUARTER ENDED
                                                        YEARS ENDED MARCH 31,            JUNE 30,
                                                    -----------------------------   -------------------
                                                     1997       1998       1999       1998       1999
                                                    -------   --------   --------   --------   --------
                                                                                        (UNAUDITED)
<S>                                                 <C>       <C>        <C>        <C>        <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net loss........................................  $(2,089)  $ (9,640)  $(15,932)  $ (3,545)  $ (3,236)
  Adjustments to reconcile net loss to net cash
     used in operating activities:
     Gain on sale of electronic testing equipment
       rights.....................................   (1,508)        --         --         --         --
     Depreciation and amortization................      149        730      1,739        339        566
     Amortization of deferred compensation........       --         --        547         --        322
     Allowance for doubtful accounts..............       50         15         85         --         --
     Accrued interest.............................       --         --        460         --        202
     Loss on disposal of fixed assets.............       --         --        181         --         --
     Changes in current assets and liabilities:
       Accounts receivable........................     (361)    (3,093)    (2,642)        19     (1,295)
       Inventories................................     (309)    (3,036)    (1,843)    (1,548)     1,374
       Prepaid expenses and other assets..........      (40)      (239)      (250)        83        (75)
       Accounts payable and accrued liabilities...      713      3,490      1,939      1,224       (699)
                                                    -------   --------   --------   --------   --------
          Net cash used in operating activities...   (3,395)   (11,773)   (15,716)    (3,428)    (2,841)
                                                    -------   --------   --------   --------   --------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Purchases of property and equipment.............     (807)    (1,405)    (1,598)      (531)      (603)
  Purchases of available-for-sale securities......   (6,932)        --         --         --         --
  Proceeds from sale of electronic testing
     equipment rights.............................    1,508         --         --         --         --
  Proceeds from sale of available-for-sale
     securities...................................      500      6,920         --         --         --
                                                    -------   --------   --------   --------   --------
          Net cash provided by (used in) investing
             activities...........................   (5,731)     5,515     (1,598)      (531)      (603)
                                                    -------   --------   --------   --------   --------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from convertible note..................       --         --     15,000         --         --
  Proceeds from note payable......................       --      1,082         --         --         --
  Payments on note payable........................       --       (170)      (345)       (84)       (90)
  Payments on capital lease obligations...........      (18)      (166)      (782)       152        (28)
  Proceeds from issuance of common stock..........       93         52        130      5,017        205
  Repurchase of common stock......................      (10)        (1)        --         --         --
  Proceeds from issuance of convertible preferred
     stock, net...................................    7,967      9,938     10,889         --         --
                                                    -------   --------   --------   --------   --------
          Net cash provided by financing
             activities...........................    8,032     10,735     24,892      5,085         87
                                                    -------   --------   --------   --------   --------
Net increase (decrease) in cash and cash
  equivalents.....................................   (1,094)     4,477      7,578      1,126     (3,357)
Cash and cash equivalents at beginning of year....    1,241        147      4,624      4,624     12,202
                                                    -------   --------   --------   --------   --------
Cash and cash equivalents at end of year..........  $   147   $  4,624   $ 12,202   $  5,750   $  8,845
                                                    =======   ========   ========   ========   ========
SUPPLEMENTAL CASH FLOW INFORMATION:
  Cash paid for interest..........................  $     4   $     54   $    240   $     52   $     57
                                                    =======   ========   ========   ========   ========
  Property and equipment acquired under capital
     lease obligations............................  $    61   $  1,532   $  1,750   $    316   $    244
                                                    =======   ========   ========   ========   ========
  Partial conversion of convertible note to
     convertible preferred stock..................  $    --   $     --   $  1,856   $     --   $     --
                                                    =======   ========   ========   ========   ========
</TABLE>

The accompanying notes to financial statements are an integral part of these
financial statements.

                                       F-6
<PAGE>   90

                             GADZOOX NETWORKS, INC.

                         NOTES TO FINANCIAL STATEMENTS
                                 MARCH 31, 1999

            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

1.  BACKGROUND

     Gadzoox Networks, Inc. ("Gadzoox" or the "Company"), formerly Gadzoox
Microsystems, Inc., was incorporated in the state of California on April 2, 1992
and was reincorporated in Delaware on January 6, 1998 (see Note 2). The Company
is a provider of products for storage area networks ("SANs"). The Company's SAN
products are designed to leverage the capabilities of fibre channel technology
to enable companies to better manage the growth in mission-critical data by
overcoming the limitations of traditional captive storage architecture and
creating a foundation for data centralization.

     The Company is subject to a number of risks associated with companies in a
similar stage of development, including reliance on a limited number of key
customers, reliance on a limited number of products, the emergence and
volatility of the storage industry, reliance on a limited number of key
suppliers, dependency on key employees for technology, potential competition
from larger, more established companies, the ability to penetrate the market
with new products, and the ability to obtain adequate financing to support its
growth.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

     The unaudited interim financial statements for the quarters ended June 30,
1998 and 1999 have been prepared on the same basis as the audited financial
statements and, in the opinion of management, reflect all normal recurring
adjustments necessary to present fairly the financial information set forth
therein in accordance with generally accepted accounting principles.

USE OF ESTIMATES

     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS

     Gadzoox considers all highly liquid investments with an original maturity
of 90 days or less to be cash equivalents. Cash equivalents consist principally
of cash deposited in money market accounts.

                                       F-7
<PAGE>   91
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

CONCENTRATION OF CREDIT RISK

     Financial instruments that potentially subject Gadzoox to concentrations of
credit risk consist principally of bank deposits and accounts receivable. The
Company places its cash and cash equivalents in checking and money market
accounts in high credit quality financial institutions. The Company's accounts
receivable are derived primarily from sales to original equipment manufacturer
customers and distribution channel partners, located primarily in the U.S., who
are generally large, well established companies. The Company performs ongoing
credit evaluations of its customers and maintains an allowance for potential
doubtful accounts.

     At March 31, 1998 and 1999 and June 30, 1999, approximately 83%, 76% and
73%, respectively, of accounts receivable were concentrated with five customers,
as follows:

<TABLE>
<CAPTION>
                                       MARCH 31,
                                      ------------     JUNE 30,
                                      1998    1999       1999
                                      ----    ----    -----------
                                                      (UNAUDITED)
<S>                                   <C>     <C>     <C>
Customer A..........................   59%     44%        24%
Customer B*.........................   11%     32%        32%
Customer C..........................   13%     --%        --%
Customer D..........................   --%     --%        17%
</TABLE>

- -------------------------
* Data for Customer B reflects the combined accounts receivable for two
  customers who merged during fiscal 1999.

INVENTORIES

     Inventories are stated at the lower of cost (first-in, first-out method) or
market. Provisions, when required, are made to reduce excess and obsolete
inventories to their estimated net realizable values.

     The Company's supplier arrangement for the production of wafers is
concentrated with one key supplier (the "Supplier"). Although there are a number
of other suppliers that could provide similar services, a change in suppliers
could cause a delay in manufacturing and possible loss of sales, which could
adversely affect operating results.

                                       F-8
<PAGE>   92
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

PROPERTY AND EQUIPMENT

     Property and equipment are stated at cost and depreciation and amortization
are provided using the straight-line method based upon the estimated useful
lives of the related assets. Useful lives range from three to five years, or
over the applicable lease term. The components of property and equipment are as
follows (in thousands):

<TABLE>
<CAPTION>
                                              MARCH 31,
                                           ----------------    JUNE 30,
                                            1998     1999        1999
                                           ------   -------   -----------
                                                              (UNAUDITED)
<S>                                        <C>      <C>       <C>
Computer and laboratory equipment........  $2,407   $ 4,161     $4,466
Software.................................     787     1,678      1,786
Furniture and equipment..................     551       809        829
Leasehold improvements...................     299       393        464
Construction in progress.................      --        80        179
                                           ------   -------     ------
                                            4,044     7,121      7,724
Accumulated depreciation and
  amortization...........................    (919)   (2,568)    (3,134)
                                           ------   -------     ------
Property and equipment, net..............  $3,125   $ 4,553     $4,590
                                           ======   =======     ======
</TABLE>

     Included in property and equipment are assets acquired under capital lease
obligations with an original cost of approximately $1,593,000, $3,370,000 and
$3,587,000, as of March 31, 1998 and 1999 and June 30, 1999, respectively.
Related accumulated amortization of these leased assets was approximately
$213,000, $1,043,000 and $1,335,000 as of March 31, 1998 and 1999 and June 30,
1999, respectively.

     During fiscal 1999, Gadzoox moved to new headquarter facilities and is
taking steps to fully sublet its previous facilities. Management anticipates
that the sublease income will approximate the Company's lease expense related to
the previous facility. At the time of the move, the Company disposed of
improvements made to the prior facility that had an original cost of $271,000
and accumulated amortization of $90,000. The Company received no proceeds for
the disposal of these improvements.

     The Company periodically evaluates the carrying amount of its long-lived
assets and applies the provisions of SFAS No. 121, "Accounting for the
Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed of "
("SFAS No. 121"). SFAS No. 121 requires that long-lived assets and certain
identifiable intangibles to be held and used or disposed of by an entity be
reviewed for impairment wherever events or changes in circumstances indicate
that the carrying amount of an asset may not be recoverable.

                                       F-9
<PAGE>   93
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

REVENUE RECOGNITION

     Gadzoox records product revenue upon shipment, with the exception of sales
to several distribution channel partners where product returns cannot be
reasonably estimated. Where product returns cannot be reasonably estimated,
revenue is recognized upon sell-through to the end user by the distribution
channel partner. Allowances for estimated sales returns are provided at the time
of revenue recognition.

WARRANTY

     Gadzoox warrants its products against defects in materials and workmanship
for one to three year periods. The estimated cost of warranty obligations is
recognized at the time of revenue recognition.

STOCK-BASED COMPENSATION

     The Financial Accounting Standards Board issued SFAS No. 123, "Accounting
for Stock-Based Compensation" ("SFAS No. 123"), in October 1995. SFAS No. 123
permits the use of either a fair value based method or the method defined in
Accounting Principles Board Opinion No. 25, "Accounting for Stock Issued to
Employees" ("APB 25") to account for stock-based compensation arrangements.
Companies that elect to employ the valuation method provided in APB 25 are
required to disclose the pro forma net income (loss) that would have resulted
from the use of the fair value based method. Gadzoox has elected to continue to
determine the value of stock-based compensation arrangements under the
provisions of APB 25, and, accordingly, it has included the pro forma
disclosures required under SFAS No. 123 in Note 10.

SOFTWARE DEVELOPMENT COSTS

     In accordance with Statement of Financial Accounting Standards No. 86,
"Accounting for the Cost of Computer Software to be Sold, Leased, or Otherwise
Marketed", development costs incurred in the research and development of new
software products are expensed as incurred until technological feasibility in
the form of a working model has been established. To date, Gadzoox' software
development has been completed concurrent with the establishment of
technological feasibility and, accordingly, all software development costs have
been charged to research and development expense in the accompanying statements
of operations.

STOCK SPLIT AND REINCORPORATION

     In May 1997, the Company's Board of Directors approved a two-for-one stock
split of its convertible preferred and common stock. All convertible preferred
and common share amounts in the accompanying financial statements have been
adjusted retroactively to give effect to this split.

                                      F-10
<PAGE>   94
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

     In May 1997, the Company's Board of Directors approved the reincorporation
of the Company in Delaware. Upon reincorporation, the Company issued new shares
with a par value of $0.005 per share to all convertible preferred and common
shareholders. All convertible preferred and common share amounts in the
accompanying financial statements have been adjusted retroactively to give
effect to this change.

BASIC NET LOSS PER SHARE AND PRO FORMA BASIC NET LOSS PER SHARE

     Historical net loss per share has been calculated under Statement of
Financial Accounting Standards No. 128, "Earnings Per Share." Basic net loss per
share on a historical basis is computed using the weighted average number of
shares of common stock outstanding. No diluted loss per share information has
been presented in the accompanying statements of operations since potential
common shares from conversion of the convertible note, convertible preferred
stock, stock options, and warrants are antidilutive. The total number of shares
excluded from diluted loss per share relating to these securities was
12,882,458, 16,481,009, 20,256,699, 17,209,012 and 20,108,479 shares for fiscal
1997, 1998 and 1999 and for the quarters ended June 30, 1998 and 1999,
respectively.

     Pursuant to the Securities and Exchange Commission Staff Accounting
Bulletin No. 98, convertible preferred stock and common stock issued or granted
for nominal consideration prior to the anticipated effective date of the initial
public offering must be included in the calculation of basic and diluted net
loss per common share as if they had been outstanding for all periods presented.
To date, Gadzoox has not had any issuances or grants for nominal consideration.

     Pro forma basic net loss per share has been calculated assuming the
conversion of convertible preferred stock into an equivalent number of common
shares, as if the shares had converted on the dates of their issuance.

                                      F-11
<PAGE>   95
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

     The following table presents the calculation of basic and pro forma basic
net loss per share (in thousands, except per share data):

<TABLE>
<CAPTION>
                                                                      QUARTER ENDED
                                      YEAR ENDED MARCH 31,              JUNE 30,
                                 ------------------------------    -------------------
                                  1997       1998        1999       1998        1999
                                 -------    -------    --------    -------    --------
                                                                       (UNAUDITED)
<S>                              <C>        <C>        <C>         <C>        <C>
Net loss.......................  $(2,089)   $(9,640)   $(15,932)   $(3,545)   $ (3,236)
                                 =======    =======    ========    =======    ========
Basic:
Weighted average shares of
  common stock outstanding.....    4,936      4,980       5,374      5,203       5,961
Less: Weighted average shares
  of common stock subject to
  repurchase...................   (1,385)      (985)       (585)      (735)       (335)
                                 -------    -------    --------    -------    --------
Weighted average shares used in
  computing basic net loss per
  share........................    3,551      3,995       4,789      4,468       5,626
                                 =======    =======    ========    =======    ========
Basic net loss per share.......  $ (0.59)   $ (2.41)   $  (3.33)   $ (0.79)   $  (0.58)
                                 =======    =======    ========    =======    ========
Pro forma:
Net loss.......................                        $(15,932)   $(3,545)   $ (3,236)
                                                       ========    =======    ========

Shares used above..............                           4,789      4,468       5,626
Pro forma adjustment to reflect
  weighted average effect of
  assumed conversion of
  convertible preferred stock
  (unaudited)..................                          12,805     12,321      13,907
                                                       --------    -------    --------
Weighted average shares used in
  computing pro forma basic net
  loss per share (unaudited)...                          17,594     16,789      19,533
                                                       ========    =======    ========
Pro forma basic net loss per
  share (unaudited)............                        $  (0.91)   $ (0.21)   $  (0.17)
                                                       ========    =======    ========
</TABLE>

RECENT ACCOUNTING PRONOUNCEMENTS

     In June 1997, the Financial Accounting Standards Board issued SFAS No. 130,
"Comprehensive Income." ("SFAS No. 130"), which was adopted by Gadzoox in fiscal
1999. SFAS No. 130 requires companies to report a new, additional measure of
income on the statement of operations or to create a new financial statement
that has the new measure of income on it. "Comprehensive Income" is to include
amounts which have been previously excluded from net income and reflected
instead in stockholders' equity. Comprehensive loss for each of the three years
in the period ended March 31, 1999 approximated net loss.

                                      F-12
<PAGE>   96
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

     In June 1997, the Financial Accounting Standards Board also issued SFAS No.
131 "Disclosures About Segments of an Enterprise and Related Information" ("SFAS
No. 131"). Gadzoox adopted SFAS No. 131 in fiscal 1999. SFAS No. 131 establishes
standards for disclosures about operating segments, products and services,
geographic areas and significant customers. Gadzoox is organized and operates as
one operating segment: the design, development, manufacturing, marketing and
selling of SAN products. For fiscal 1997, 1998 and 1999 and for the quarters
ended June 30, 1998 and 1999, product net revenues amounted to 95%, 99%, 98%,
98% and 93%, respectively, of total net revenues. Gadzoox sells its SAN products
domestically and internationally. See Note 3 regarding significant customers and
export sales.

     In March 1998, the American Institute of Certified Public Accountants
("AICPA") issued Statement of Position No. 98-1 "Accounting for the Cost of
Computer Software Developed or Obtained for Internal Use" ("SOP No. 98-1"). SOP
No. 98-1 requires entities to capitalize certain costs related to internal-use
software once certain criteria has been met. Gadzoox adopted SOP No. 98-1 in
fiscal 1999. The adoption did not have a material impact on Gadzoox' financial
position or results of operations.

     In April 1998, the AICPA issued SOP No. 98-5 "Reporting on the Costs of
Start-Up Activities" ("SOP No. 98-5"). SOP No. 98-5 requires that all start-up
costs related to new operations must be expensed as incurred. In addition, all
start-up costs that were previously capitalized must be written off when SOP No.
98-5 is adopted. Gadzoox adopted SOP No. 98-5 in fiscal 1999. The adoption did
not have a material impact on Gadzoox' financial position or results of
operations.

     In June 1998, the Financial Accounting Standards Board issued SFAS No. 133
"Accounting for Derivative Instruments and Hedging Activities" ("SFAS No. 133").
SFAS No. 133 will be effective for Gadzoox on July 1, 1999. SFAS No. 133
requires certain accounting and reporting standards for derivative financial
instruments and hedging activities. Because the Company does not currently hold
any derivative instruments and does not engage in hedging activities, management
does not believe that the adoption of SFAS No. 133 will have a material impact
on the Company's financial position or results of operations.

     In December 1998, the AICPA issued SOP 98-9, "Modification of SOP 97-2,
Software Revenue Recognition, With Respect to Certain Transactions," ("SOP
98-9"). SOP 98-9 amends SOP 97-2 and SOP 98-4 by extending the deferral of the
application of certain provisions of SOP 97-2, amended by SOP 98-4, through
fiscal years beginning on or before March 15, 1999. All other provisions of SOP
98-9 are effective for transactions entered into in fiscal years beginning after
March 15, 1999. Management does not expect the adoption of SOP 98-9 to have a
significant effect on the Company's financial position or results of operations.

                                      F-13
<PAGE>   97
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

3.  SIGNIFICANT CUSTOMERS AND EXPORT SALES

     For the years ended March 31, 1997, 1998 and 1999 and the quarters ended
June 30, 1998 and 1999, certain customers individually accounted for more than
10% of net revenues as follows:

<TABLE>
<CAPTION>
                                                     QUARTER ENDED
                             YEAR ENDED MARCH 31,       JUNE 30,
                             --------------------    --------------
                             1997    1998    1999    1998     1999
                             ----    ----    ----    -----    -----
                                                      (UNAUDITED)
<S>                          <C>     <C>     <C>     <C>      <C>
Customer A.................   18%     58%     42%     50%      32%
Customer B.................   --      --      15%     --       29%
Customer C.................   --      11%     10%     17%      --
Customer D.................   16%     --      --      --       --
Customer E.................   --      --      --      12%      --
Customer F.................   --      --      --      --       15%
</TABLE>

     Sales to Europe and Japan represented approximately 17% (Germany comprising
12%) and 3%, respectively, of net revenues for fiscal 1999. In years prior to
fiscal 1999, export sales were less than 10% of net revenues.

4.  INVENTORIES

     Inventories consist of the following (in thousands):

<TABLE>
<CAPTION>
                                         MARCH 31,
                                      ---------------    JUNE 30,
                                       1998     1999       1999
                                      ------   ------   -----------
                                                        (UNAUDITED)
<S>                                   <C>      <C>      <C>
Raw materials.......................  $1,539   $2,565     $1,248
Work-in-process.....................   1,730      210        761
Finished goods......................     194    2,531      1,923
                                      ------   ------     ------
                                      $3,463   $5,306     $3,932
                                      ======   ======     ======
</TABLE>

5.  COMMITMENTS AND CONTINGENCIES

LEASE OBLIGATIONS

     During fiscal 1998 and 1999, Gadzoox acquired certain equipment under
capital leases. Additionally, the Company leases three facilities under
non-cancelable operating leases which expire November 1999, January 2002 and
November 2005. Future minimum

                                      F-14
<PAGE>   98
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

lease payments under all capital and operating lease agreements as of March 31,
1999 are as follows (in thousands):

<TABLE>
<CAPTION>
                                              CAPITAL    OPERATING
                                              LEASES      LEASES
                                              -------    ---------
<S>                                           <C>        <C>
2000........................................  $1,206      $1,358
2001........................................   1,042       1,477
2002........................................     332       1,531
2003........................................       3       1,486
2004........................................      --       1,256
Thereafter..................................      --       2,186
                                              ------      ------
                                               2,583      $9,294
                                                          ======
Less amounts representing interest (weighted
  average interest rate of 7.25%)...........    (196)
                                              ------
Present value of minimum lease payments.....   2,387
Less: current portion.......................   1,080
                                              ------
Non-current portion.........................  $1,307
                                              ======
</TABLE>

     For the years ended March 31, 1997, 1998 and 1999, rent expense under non-
cancelable operating lease agreements was approximately $144,000, $382,000 and
$781,000, respectively.

LEGAL PROCEEDINGS

     From time to time, the Company may become involved in various lawsuits and
legal proceedings which arise in the ordinary course of business. For example,
in May 1999, a former employee filed a complaint against the Company. Management
believes this claim is without merit and that resolution of this claim will not
have a material adverse effect on the Company's financial position or statements
of operations. However, litigation is subject to inherent uncertainties, and an
adverse result in this or other matters may arise from time to time that may
harm the Company's business.

6.  CONVERTIBLE NOTE

     In September 1998, Gadzoox entered into a $15,000,000 convertible note
purchase agreement (the "Agreement") with Seagate Technology, Inc. ("Seagate").
Under this Agreement, Seagate purchased a convertible subordinated promissory
note in the aggregate principal amount of $15,000,000 (the "Convertible Note"),
bearing simple interest on the unpaid principal balance at a rate equal to 5.75%
per annum with principal and interest maturing in September 2001. As further
outlined and defined in the Agreement, the Company may convert, at its sole
option, any portion or all of the outstanding balance of principal and interest
on the Convertible Note into shares of Series G preferred stock at a price of
$7.65 per share. Accrued interest is converted prior to any principal owing
under the Convertible Note. The Agreement also provides that without the
Company's consent,

                                      F-15
<PAGE>   99
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

conversion of the Convertible Note may not result in Seagate holding more than
19.9% of the Company's outstanding shares. In the event of a default, as defined
in the Agreement, Seagate may declare all outstanding interest and principal
immediately due and payable in cash. Gadzoox may, upon 30 days written notice to
Seagate, prepay the Convertible Note in whole or in part.

     In October 1998, the Company converted $59,000 of interest and $1,797,000
of principal into 242,694 shares of Series G preferred stock. At June 30, 1999,
there was a total of $13,743,225 of unpaid principal and interest outstanding
under the Convertible Note which, if converted, would have converted into
1,796,500 shares of Series G preferred stock.

7.  NOTE PAYABLE

     In August 1997, the Company entered into a loan agreement (the "Note")
secured by equipment. The face amount of the Note was $1,082,000. The repayment
period is 36 months with 35 monthly payments of principal and interest of
approximately $33,000 and a final installment of approximately $162,000 due on
September 1, 2000. The Note bears interest at approximately 9.0% per annum. As
of March 31, 1999, principal maturities under the Note are $371,000 and $196,000
in fiscal 2000 and 2001, respectively.

8.  REVOLVING CREDIT AGREEMENT

     In January 1998, Gadzoox entered into a revolving credit agreement (the
"Line") with a bank, which provided for maximum borrowings of an amount not to
exceed the lower of 70% of eligible accounts receivable or $5,000,000. On March
15, 1999, the Company renewed the Line, which now expires on February 1, 2000.
Borrowings under the Line are secured by all of the Company's assets and bear
interest at the bank's prime rate plus 0.5% per annum (approximately 8.25% at
March 31, 1999). The agreement requires that the Company maintain certain
financial ratios and levels of tangible net worth and also restricts the
Company's ability to pay cash dividends. During fiscal 1998 and 1999 and as of
June 30, 1999, there were no borrowings outstanding under the line.

                                      F-16
<PAGE>   100
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

9.  CONVERTIBLE PREFERRED STOCK

     Convertible preferred stock, at par, consists of the following (in
thousands, except share information):

<TABLE>
<CAPTION>
                                                         MARCH 31,
                                                        ------------     JUNE 30,
                                                        1998    1999       1999
                                                        ----    ----    -----------
                                                                        (UNAUDITED)
                                                                        -----------
<S>                                                     <C>     <C>     <C>
Series A, 856,600 shares authorized, issued and
  outstanding in 1999 and 1998, liquidation preference
  of $217.............................................  $ 4     $ 4         $ 4
Series B, 660,000 shares authorized, issued and
  outstanding in 1999 and 1998, liquidation preference
  of $250.............................................    3       3           3
Series C, 1,454,544 shares authorized, issued and
  outstanding in 1999 and 1998, liquidation preference
  of $800.............................................    7       7           7
Series D, 2,720,000 shares authorized, issued and
  outstanding in 1999 and 1998, liquidation preference
  of $2,103...........................................   14      14          14
Series E, 4,444,444 shares authorized, issued and
  outstanding in 1999 and 1998, liquidation preference
  of $8,000...........................................   22      22          22
Series F, 2,120,476 shares authorized in 1999 and
  1998, 2,092,234 issued and outstanding in 1999 and
  1998, liquidation preference of $10,000.............   10      10          10
Series G, 3,243,936 shares authorized in 1999 and none
  in 1998, 895,263 issued and outstanding in 1999 and
  none in 1998, liquidation preference of $6,849......   --       5           5
Series H, 1,000,000 shares authorized in 1999 and none
  in 1998, 784,314 issued and outstanding in 1999 and
  none in 1998, liquidation preference of $6,000......   --       4           4
                                                        ---     ---         ---
                                                        $60     $69         $69
                                                        ===     ===         ===
</TABLE>

     Series A, B, C, D, E, F, G and H convertible preferred stock (collectively,
the "preferred stock") are convertible into common stock at the option of the
shareholder on a one-for-one basis, subject to antidilution adjustments.
Conversion is mandatory concurrent with a firm underwritten public offering of
not less than $10,000,000 and with a per share price of not less than twice the
per share issuance price of Series A, B, C, D, and E and of not less than one
times the per share issuance price of Series F, G and H subject to adjustments.

     The holders of the preferred stock have voting rights equal to the voting
rights of the common shareholders on an as-if converted basis.

     Series A, B, C, D, E, F, G and H preferred shareholders are entitled to
receive noncumulative dividends, when and as declared by the Board of Directors,
at an annual amount of $0.02, $0.03, $0.045, $0.06, $0.145, $0.38, $0.612 and
$0.612 per share, respectively. No cash dividends have been declared to date by
the Board of Directors.

     In the event of a liquidation, Series A, B, C, D, E, F, G and H preferred
shareholders are entitled to receive, prior to, and in preference to any
distribution to the holders of

                                      F-17
<PAGE>   101
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

common stock, $0.25275, $0.37875, $0.55, $0.74, $1.80, $4.78, $7.65 and $7.65
per share, respectively, plus all declared and unpaid dividends. If
undistributed assets remain after satisfying the preferred shareholders, such
assets shall be distributed ratably among the holders of preferred stock and
common stock, on an as-if converted basis, provided that no holder of preferred
stock shall receive a distribution in excess of twice the original purchase
price of each share of preferred stock.

     In August 1997, in connection with lease financing and a note payable,
Gadzoox issued warrants to purchase 15,690 and 12,552 shares, respectively, of
Series F preferred stock at an exercise price of $4.78 per share. The warrants
are immediately exercisable for the longer of ten years from the date of
issuance or five years from the effective date of the Company's initial public
offering. The fair value of the warrants at the date of issuance was not
material.

     In July 1998, in connection with lease financing, Gadzoox issued warrants
to purchase 19,607 shares of Series G preferred stock at an exercise price of
$7.65 per share. The warrants are immediately exercisable for the longer of five
years or two years from the effective date of the Company's initial public
offering. The fair value of the warrants at the date of issuance was not
material.

UNAUDITED PRO FORMA STOCKHOLDERS' EQUITY

     In May 1999, the Company's Board of Directors authorized the filing of a
registration statement with the Securities and Exchange Commission to register
shares of its common stock in connection with a proposed initial public offering
(the "IPO"). If the IPO is consummated under the terms presently anticipated,
all of the currently outstanding shares of convertible preferred stock will be
converted into 13,907,399 shares of common stock upon the closing of the IPO.
The effect of the convertible preferred stock conversion has been reflected as
unaudited pro forma stockholders' equity in the accompanying balance sheet as of
March 31, 1999. The conversion of the Convertible Note into 1,796,500 shares of
Series G preferred stock (see Note 6) does not automatically occur in connection
with the IPO and, accordingly, such conversion is not reflected in the unaudited
pro forma stockholders' equity.

                                      F-18
<PAGE>   102
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

10.  COMMON STOCK

     At June 30, 1999, shares of common stock were reserved for future issuances
as follows (unaudited):

<TABLE>
<S>                                                  <C>
1993 Stock Plan:
  Outstanding options and rights...................   4,331,731
  Reserved for future grants.......................     894,174
Employee Stock Purchase Plan.......................     150,000
Director Stock Option Plan:
  Outstanding options..............................      25,000
  Reserved for future grants.......................      25,000
Conversion of preferred stock......................  13,907,399
Conversion of Convertible Note.....................   1,796,500
Warrants to purchase Series F preferred stock......      28,242
Warrants to purchase Series G preferred stock......      19,607
                                                     ----------
                                                     21,177,653
                                                     ==========
</TABLE>

STOCK OPTION PLAN

     Under the 1993 Stock Plan (the "Plan"), Gadzoox may grant incentive stock
options to employees, nonstatutory stock options to employees, consultants and
nonemployee directors of the Company and stock purchase rights up to 7,680,000
shares of common stock. During the year ended March 31, 1999, the Board of
Directors increased the number of stock options available for future grant by
1,100,000. All incentive and nonstatutory stock option grants must be at prices
of at least 100% and 85%, respectively, of the fair value of the stock on the
date of grant, as determined by the Board of Directors.

     The options are exercisable as determined by the Board of Directors.
Generally, stock options vest ratably over a four-year period except for options
granted to new employees which vest 25% on the first anniversary of the grant
date and vest ratably over the remaining three years. The options expire upon
the earlier of ten years from the date of grant or thirty days following
termination of employment. Stock purchase rights granted under the Plan must be
accepted within ninety days from the date of grant. Shares purchased pursuant to
the grant of a stock purchase right shall be subject to repurchase, and the
repurchase option shall lapse at a minimum rate of 20% per year.

                                      F-19
<PAGE>   103
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

     A summary of transactions under the Plan is as follows:

<TABLE>
<CAPTION>
                                                               OUTSTANDING
                                                           OPTIONS AND RIGHTS
                                           SHARES     -----------------------------
                                         AVAILABLE                 WEIGHTED-AVERAGE
                                         FOR GRANT      NUMBER      EXERCISE PRICE
                                         ----------   ----------   ----------------
<S>                                      <C>          <C>          <C>
Balance at March 31, 1996..............   2,095,610    1,295,870        $0.074
  Authorized...........................   1,551,120           --            --
  Granted..............................  (2,691,650)   2,691,650         0.130
  Cancelled............................       4,000       (4,000)        0.025
  Exercised............................          --   (1,236,650)        0.075
                                         ----------   ----------
Balance at March 31, 1997..............     959,080    2,746,870         0.128
  Authorized...........................   1,028,800           --            --
  Granted..............................  (1,664,450)   1,664,450         0.877
  Cancelled............................      77,875      (77,875)        0.098
  Exercised............................          --     (108,500)        0.091
  Restricted shares repurchased........      56,322           --            --
                                         ----------   ----------
Balance at March 31, 1998..............     457,627    4,224,945         0.423
  Authorized...........................   1,100,000           --            --
  Granted..............................  (1,119,400)   1,119,400         2.759
  Cancelled............................     303,251     (303,252)        1.270
  Exercised............................          --     (511,401)        0.235
                                         ----------   ----------
Balance at March 31, 1999..............     741,478    4,529,692         0.969
  Authorized (unaudited)...............     500,000           --            --
  Granted (unaudited)..................    (396,300)     396,300         9.000
  Cancelled (unaudited)................      48,996      (48,996)        1.107
  Exercised (unaudited)................          --     (545,265)        0.407
                                         ----------   ----------
Balance at June 30, 1999 (unaudited)...     894,174    4,331,731         1.773
                                         ==========   ==========
</TABLE>

                                      F-20
<PAGE>   104
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

     The following table summarizes the stock options outstanding and
exercisable as of March 31, 1999:

<TABLE>
<CAPTION>
                  OPTIONS OUTSTANDING                        OPTIONS EXERCISABLE
- --------------------------------------------------------   ------------------------
                                  WEIGHTED-    WEIGHTED-                  WEIGHTED-
    RANGE OF                       AVERAGE      AVERAGE                    AVERAGE
    EXERCISE                      REMAINING    EXERCISE                   EXERCISE
     PRICE           NUMBER         YEARS        PRICE        NUMBER        PRICE
- ----------------  ------------   -----------   ---------   ------------   ---------
<S>               <C>            <C>           <C>         <C>            <C>
$0.025..........      11,870         4.4        $0.025         11,870      $0.025
 0.075 - $0.083...  1,251,500        6.9         0.076        878,667       0.075
 0.18  - $0.27...  1,322,126         7.9          0.23        641,168        0.23
 0.72...........     436,967         8.4          0.72        132,663        0.72
 1.20...........     207,350         8.7          1.20         69,233        1.20
 2.00...........     548,829         9.1          2.00         90,750        2.00
 3.10...........     751,050         9.6          3.10         25,867        3.10
                   ---------                                ---------
                   4,529,692                     0.969      1,850,218
                   =========                                =========
</TABLE>

     At March 31, 1999, 391,667 shares previously issued under stock purchase
rights were subject to repurchase at a weighted-average price of $0.066.

VALUATION OF STOCK OPTIONS

     Gadzoox has elected to follow APB 25, under which no compensation expense
is recognized when stock options are granted at a price equal to the fair market
value of the underlying shares on the date of grant. Had compensation expense
for the Plan been determined consistent with SFAS No. 123, the Company's pro
forma net loss (reflecting adjustment for compensation expense consistent with
SFAS No. 123) would have been $2,099,000, $9,741,000 and $16,129,000 in fiscal
1997, 1998 and 1999, respectively, and the Company's pro forma net loss per
share (reflecting adjustment for compensation expense consistent with SFAS No.
123) would have been $(0.59), $(2.44), and $(3.37) in fiscal 1997, 1998 and
1999, respectively.

     The weighted-average fair value of options granted during fiscal 1997, 1998
and 1999 was $0.015, $0.22 and $0.49, respectively. To determine compensation
expense under SFAS No. 123, Gadzoox used the following assumptions to estimate
the fair value of each option granted on the date of grant using the
Black-Scholes option valuation model: risk-free interest rates ranging from 4.56
to 6.73 percent, expected dividend yields of zero percent, an average expected
life of 4 years, expected volatility of 0.01%.

DEFERRED COMPENSATION

     In connection with the grant of certain stock options to employees during
fiscal 1999, Gadzoox recorded deferred compensation within stockholders' equity
of approximately $3.0 million, representing the difference between the estimated
fair value of the common stock for accounting purposes and the option exercise
price of these options at the date of

                                      F-21
<PAGE>   105
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

grant. The Company recorded amortization of deferred compensation of $547,000
during fiscal 1999. At March 31, 1999, the remaining deferred compensation of
approximately $2.4 million will be amortized as follows: $1.3 million during
fiscal 2000, $670,000 during fiscal 2001, $350,000 during fiscal 2002 and
$120,000 during fiscal 2003, respectively. The amortization expense relates to
options awarded to employees in all operating expense categories. The
amortization of deferred compensation has not been separately allocated to these
categories. The amount of deferred compensation expense to be recorded in future
periods could decrease if options for which accrued but unvested compensation
has been recorded are forfeited.

11.  SALE OF ELECTRONIC TEST EQUIPMENT RIGHTS

     In November 1997, Gadzoox sold its rights to the high-speed parametric test
equipment to a third party for $1,550,000 and recorded $42,000 in expenses. As
part of the sale, a patent with no historical basis held by Gadzoox relating to
the testing technology was assigned to the third party.

12.  RELATED PARTY TRANSACTIONS

     The holder of the Series H convertible preferred stock (the "Series H
Holder") is a customer of the Company. During fiscal 1999, the Company entered
into a commercial relationship with the Series H Holder providing that the
Series H Holder would reimburse the Company for certain research efforts
undertaken by the Company. During fiscal 1999, the Company received
approximately $489,000 of such reimbursement which has been recorded within
Deferred Revenue and Other on the accompanying balance sheet as of March 31,
1999. In April 1999, the Series H Holder advised the Company of its intent to
exit the SAN market and divest its shares of Series H. The Company has a right
of first refusal for the purchase of the Series H. Management is currently
evaluating whether to exercise its repurchase rights and is negotiating with the
Series H Holder to terminate their commercial relationship. The deferred revenue
will not be recognized until the Company and the Series H Holder reach agreement
on the terms of terminating the commercial relationship. The Series H Holder
accounted for approximately 2% of the Company's net revenues for fiscal 1999.
Management does not anticipate that the termination of the commercial
relationship will have a material effect on the Company's financial position or
results of operations.

13.  INCOME TAXES

     Due to the Company's loss position, there was no provision for income taxes
for the years ended March 31, 1997, 1998 and 1999 and the quarters ended June
30, 1998 and 1999.

                                      F-22
<PAGE>   106
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

     The components of the net deferred tax asset at March 31, 1998 and 1999
were as follows (in thousands):

<TABLE>
<CAPTION>
                                             1998        1999
                                            -------    --------
<S>                                         <C>        <C>
Net operating loss carryforwards..........  $ 4,258    $  9,555
Cumulative book to tax differences........      964       1,751
Tax credit carryforwards..................      649       1,699
                                            -------    --------
                                              5,871      13,005
Valuation allowance.......................   (5,871)    (13,005)
                                            -------    --------
                                            $    --    $     --
                                            =======    ========
</TABLE>

     A valuation allowance has been recorded for the entire deferred tax asset
as a result of uncertainties regarding the realization of the asset balance due
to the variability of operating results. As of March 31, 1999, Gadzoox has net
cumulative operating loss carryforwards for Federal and state income tax
reporting purposes of approximately $26,759,000 and $3,324,000, respectively.
The Company also has Federal and state research and development tax credit
carryforwards of approximately $877,000 and $822,000, respectively The net
cumulative operating loss and credit carryforwards will expire at various dates
beginning in the years 1999 through 2014, if not utilized. Utilization of net
operating losses and credits may be subject to a substantial annual limitation
due to the ownership change limitations provided by the Internal Revenue Code of
1986, as amended, and similar state provisions. The annual limitation may result
in the expiration of net operating losses before utilization.

14.  SUBSEQUENT EVENTS (UNAUDITED)

1999 EMPLOYEE STOCK PURCHASE PLAN

     In May 1999, the Board of Directors approved the adoption of the Company's
1999 Employee Stock Purchase Plan (the "Stock Purchase Plan"), subject to
stockholder approval. A total of 150,000 shares of common stock have been
reserved for issuance under the Stock Purchase Plan. The number of shares
reserved for issuance under the Stock Purchase Plan will be subject to an annual
increase to be added on the first day of the Company's fiscal year, beginning in
2000, equal to the lesser of (i) 250,000 shares, (ii) 0.5% of the outstanding
shares on such date or (iii) a lesser amount determined by the Board of
Directors. The Stock Purchase Plan allows eligible employees to purchase shares
of common stock through payroll deductions at 85% of the fair market value of
the common stock.

1993 STOCK OPTION PLAN

     In May 1999, the Board of Directors approved and adopted, subject to
stockholder approval and effective upon the closing of the proposed initial
public offering, an Amended and Restated 1993 Stock Option Plan (the "Amended
Plan"). Under the Amended Plan, the number of shares authorized for issuance is
increased to 8,180,000. The number of

                                      F-23
<PAGE>   107
                             GADZOOX NETWORKS, INC.

                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
                                 MARCH 31, 1999
            (INFORMATION AS OF JUNE 30, 1998 AND 1999 IS UNAUDITED)

shares reserved for issuance under the Amended Plan will be subject to an annual
increase to be added on the first day of the Company's fiscal year, beginning in
2000, equal to the lesser of (i) 1,500,000 shares, (ii) 1% of the outstanding
shares on such date, or (iii) a lesser amount determined by the Board of
Directors.

1999 DIRECTOR STOCK OPTION PLAN

     In May 1999, the Board of Directors approved the adoption of the 1999
Director Stock Option Plan (the "Director Plan") which provides for the
automatic grant of 5,000 shares of common stock to each non-employee director on
the later of the date of adoption of the Director Plan or the date on which such
person first becomes a director (the "Initial Grant"). After the Initial Grant,
the non-employee director will receive an automatic annual grant of 2,500 shares
of common stock. All shares granted under the Director Plan are 100% vested at
the grant date and expire upon the earlier of three years or the resignation of
the director from the Board of Directors. A total of 50,000 shares of common
stock have been reserved for issuance under the Director Plan. The number of
shares reserved for issuance under the Director Plan will be subject to an
annual increase, beginning with the fiscal year beginning in 2000, sufficient to
bring the number of shares available for future issuance to 50,000 shares. As of
June 30, 1999, options to acquire 25,000 shares of common stock were outstanding
under the Director Plan.

                                      F-24
<PAGE>   108
                       APPENDIX - DESCRIPTION OF GRAPHICS
                       GADZOOX NETWORKS PROSPECTUS WRAPPER


Front inside cover:

Headline: "Growth In Enterprise Data"

Graphics: The following product names, with pictures of each product, are set
forth: "Ventana," "Capellix," Denali," "Gibralter" and "Bitstrip."

The following words appear in the background: "OLTP," "Internet," "Multimedia,"
"E-Commerce," "Decision Support" and "Data Warehousing."

In the upper right-hand corner, the Gadzoox logo is set forth.

Front Gatefold:

Graphics:

A pictorial presentation of the Gadzoox products, and the primary function of
each product, within the SAN topology is presented. A pictorial presentation of
the traditional captive storage architecture is also presented. The "LAN" and
"WAN" topology, relative to the SAN topology, is indicated.

The following text appears in connection with each Gadzoox product: Ventana -
"San Management Software," Capellix - "Chassis Switch," Gibralter - "Managed
Hub," Denali - "Area Switch," and Bitstrip - "Active Hub."

Headline: "the Gadzoox SAN Solution"

Main Text:

*Capacity Scalability
*Increased Performance
*Data Availability and Disaster Tolerance
*Interoperability
*Modular Scalability
*Increased Network Stability
*Advanced Data Management

Headline: "Traditional Captive Storage Architecture"

Main Text:

*Capacity Constraints
*Performance Constraints
*Lack of Management
*Lack of Availability and Disaster Tolerance

In the upper right-hand corner, the Gadzoox logo is set forth.

Back Inside Cover:

Headline: "the Gadzoox Solution"

<PAGE>   109

Main Text:

*Capacity Scalability - the ability to connect millions of data storage devices
to more effectively support the growth of data

*Increased Performance - the ability to transmit data faster between computers
and storage devices to provide rapid access to data

*Data Availability and Disaster Tolerance - the ability to monitor and control
the function of storage area network devices from remote locations to reduce the
cost and complexity of transmitting data and troubleshooting failures

*Interoperability - the ability to simplify the installation of storage area
network products and enhance the protection of existing user investments

*Modular Scalability - the ability to upgrade capabilities with a building block
approach to extend data storage capacity and enhance data availability

*Increased Network Stability - the ability to provide dependable connections to
help ensure reliable access to data

*Advanced Data Management - the ability to provide a platform for the
development of new methods that further increase data availability and
reliability

Set forth at the bottom of the page are the respective logos of "Gadzoox
Strategic Partners," including "Tel," "LSI Logic," "Agate," "Ideal," "ATL
Products," "Sanmina," "Consan," "Hewlett Packard," "NEC," "Veritas,"
"Legato Systems, Inc.," "Cranel," "Exabyte," "Compaq," "Vitesse," "Bull," "Bell
Microproducts," "Anadataco," "Merisel," and "Seagate," "Tektronix," "Avid,"
"EMC," and "Sun."

In the upper right-hand corner, the Gadzoox logo is set forth.

Back Outside Cover:

The Gadzoox logo is set forth in the center of the page.
<PAGE>   110

[Gadzoox Logo]


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