MYLEX CORP
424B1, 1995-09-21
COMPUTER PERIPHERAL EQUIPMENT, NEC
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<PAGE>
PROSPECTUS

                                2,000,000 Shares
                                       x

                                  CORPORATION

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

    All  of the shares  of Common Stock  offered hereby are  being sold by Mylex
Corporation. The Common Stock  of the Company is  traded on the Nasdaq  National
Market  under the symbol "MYLX."  On September 20, 1995,  the last reported sale
price of the Common Stock was $17.83 per share.

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

    SEE "RISK FACTORS" BEGINNING ON PAGE  5 FOR A DISCUSSION OF CERTAIN  FACTORS
RELEVANT TO AN INVESTMENT IN THE SHARES OF COMMON STOCK.

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

THESE  SECURITIES  HAVE  NOT  BEEN APPROVED  OR  DISAPPROVED  BY  THE SECURITIES
    AND  EXCHANGE  COMMISSION  OR   ANY  STATE  SECURITIES  COMMISSION   NOR
       HAS   THE  SECURITIES   AND  EXCHANGE  COMMISSION   OR  ANY  STATE
            SECURITIES  COMMISSION  PASSED  UPON  THE  ACCURACY   OR
                ADEQUACY  OF THIS PROSPECTUS. ANY REPRESENTATION
                      TO  THE   CONTRARY  IS   A   CRIMINAL
                                    OFFENSE.

<TABLE>
<CAPTION>
                                                                            UNDERWRITING
                                                          PRICE TO         DISCOUNTS AND        PROCEEDS TO
                                                           PUBLIC         COMMISSIONS (1)       COMPANY (2)
<S>                                                  <C>                 <C>                 <C>
Per Share..........................................        $17.50               $.92               $16.58
Total (3)..........................................     $35,000,000          $1,840,000         $33,160,000
<FN>
(1)  The  Company  has  agreed  to indemnify  the  Underwriters  against certain
     liabilities, including liabilities  under the  Securities Act  of 1933,  as
     amended. See "Underwriting."

(2)  Before  deducting  offering expenses  payable by  the Company  estimated at
     $400,000.

(3)  The Company has granted the Underwriters a 30-day option to purchase up  to
     an   additional   300,000  shares   of   Common  Stock   solely   to  cover
     over-allotments, if any.  If such option  is exercised in  full, the  total
     Price  to Public, Underwriting  Discounts and Commissions,  and Proceeds to
     Company will be $40,250,000, $2,116,000 and $38,134,000, respectively.  See
     "Underwriting."
</TABLE>

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

    The  shares of Common  Stock offered by  this Prospectus are  offered by the
several Underwriters, subject to  prior sale, when, as  and if delivered to  and
accepted  by them, and  subject to the  right of the  Underwriters to reject any
order in whole or in  part. It is expected that  certificates for the shares  of
Common  Stock will be available for delivery in  New York, New York, on or about
September 26, 1995.

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

                            Needham & Company, Inc.

               The date of this Prospectus is September 20, 1995
<PAGE>
x

THE MYLEX DAC 960PD
PCI-BASED RAID CONTROLLER

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

    IN CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR  EFFECT
TRANSACTIONS  WHICH  STABILIZE OR  MAINTAIN THE  MARKET  PRICE OF  THE COMPANY'S
COMMON STOCK AT A  LEVEL ABOVE THAT  WHICH MIGHT OTHERWISE  PREVAIL IN THE  OPEN
MARKET.  SUCH TRANSACTIONS MAY BE EFFECTED ON THE NASDAQ NATIONAL MARKET, IN THE
OVER-THE-COUNTER MARKET OR  OTHERWISE. SUCH  STABILIZING, IF  COMMENCED, MAY  BE
DISCONTINUED AT ANY TIME.

    IN  CONNECTION WITH  THIS OFFERING,  CERTAIN UNDERWRITERS  AND SELLING GROUP
MEMBERS MAY ENGAGE IN PASSIVE MARKET MAKING TRANSACTIONS IN THE COMMON STOCK  ON
THE  NASDAQ NATIONAL  MARKET IN ACCORDANCE  WITH RULE 10B-6A  UNDER THE EXCHANGE
ACT. SEE "UNDERWRITING."

    The Mylex  logo  is  a  registered  trademark  of  the  Company.  All  other
trademarks or brand names appearing in this Prospectus are the property of their
respective holders.
<PAGE>
                        [LOGO]

    RAID  is available  in several levels  that differ  in the ways
they break down data for storage and achieve fault tolerance.  RAID
Level  0, for example, distributes data  in stripes across the disk
drives in  an  array  but  does not  calculate  the  parity  values
necessary  for fault tolerance. Level 1 achieves fault tolerance by
creating mirror images  of all  data and  storing each  image on  a
different  disk than the  disk used to  store the original. Because
Level 1  creates  exact duplicates  of  all stored  data,  it  uses
one-half  of available storage capacity to achieve fault tolerance.
Level 5 distributes data in  stripes, calculates parity values  for
all  stripes and  distributes the  parity values  evenly across all
disks in the array. Because level 5 uses the equivalent of just one
drive in the disk array to store parity values, it increases usable
system storage capacities  over levels  achieved by  RAID Level  1.
Level  3 dedicates one of the disks  in the array to the storage of
parity values and employs the rest  of the disks to read and  write
information  in parallel. Because  Level 3 uses  all drives in each
read and write operation, it  can accommodate only one  transaction
at  a time. By allowing parallel data transfer, however, Level 3 is
the best choice for applications requiring access to large  amounts
of   information  stored   sequentially,  such   as  multimedia  or
video-on-demand.
<PAGE>
                                     [LOGO]

  TYPICAL COMMAND FLOW

1.   The   host   issues   a
     command to the
     controller  to read (or
     write)  data  from  (or
     to)  a  logical  drive.
     For  a  read   command,
     step 2 is skipped.

2.   The i960 processor sets
     up  the  host interface
     device to transfer data
     to  the   cache.   Upon
     completion,   the  host
     interface device
     notifies the i960.

3.   For a read command, the
     i960 processor
     determines   that   the
     data resides on
     multiple    disks   and
     instructs the SCSI  I/O
     processors (or "SIOPs")
     to  retrieve  data from
     the disk drives to  the
     cache.  For  a  RAID  5
     write command, the i960
     processor determines
     that some  data may  be
     required  from the SCSI
     disks for parity
     computation and
     instructs the SIOPs  to
     retrieve this data.

4.   The  SIOPS  transfer  data  from the
     disks to  the cache  and notify  the
     i960  on  completion.  For  a  write
     command,  the  i960  then   computes
     parity.  For a read command, steps 5
     and 6 are skipped.

5.   The i960  instructs the  SIOPs to  transfer  data and  parity to  the  disk
     drives.

6.   The  SIOPs transfer data  from the cache  to the disks  and notify the i960
     upon completion. The i960, in turn,  notifies the host. This completes  the
     execution of a write command and step 7 is not needed.

7.   The  i960 sets up the host interface device to transfer data from the cache
     to system memory. Upon completion,  the host interface device notifies  the
     i960, which, in turn, notifies the host.
<PAGE>
                               PROSPECTUS SUMMARY

    THE FOLLOWING SUMMARY IS QUALIFIED IN ITS ENTIRETY BY, AND SHOULD BE READ IN
CONJUNCTION   WITH,  THE  MORE  DETAILED   INFORMATION  APPEARING  ELSEWHERE  OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS.

                                  THE COMPANY

    Mylex designs, manufactures and markets  RAID controllers that provide  high
performance,   capacity  enhancing  fault   tolerant  storage  and  input/output
solutions for client/server computer  networks. Mylex controllers integrate  the
Company's  proprietary  ASICs,  firmware  and  software  with  standard industry
components. More than twenty leading  network file server and storage  subsystem
OEMs, including IBM, Hewlett-Packard Company, Digital Equipment Corporation, and
NEC,  have  designed  Mylex  RAID  controllers  into  their  server  and storage
subsystem products.

    During the  late 1980s  and early  1990s, the  Company's principal  business
involved  the production and  sale of system  boards (so-called "mother boards")
for personal computers. In  the early 1990s, Mylex  responded to changes in  the
computer  industry by  undertaking a  series of  product development initiatives
designed to reposition the Company to  address the storage and input/output,  or
"I/O,"  challenges facing  the emerging client/server  computing environment. In
1992, the Company introduced its first RAID controller product into the personal
computer network market. Sales  of RAID controller  products have grown  rapidly
since 1992, and represented over 90% of the Company's net sales during the first
half  of 1995. The higher gross margins from this new product line are reflected
in the increase in  the Company's overall  gross margins from  13.6% in 1992  to
19.4% in 1993 to 35.5% in 1994 to 37.4% in the first half of 1995.

    The  trend toward  client/server computing that  began in  the mid-1980s has
placed particular demands on network storage systems and related I/O  functions.
The   development  of  faster  microprocessors  and  more  robust  computer  bus
architectures in network systems has often outstripped the capabilities of  data
storage  and I/O technologies, leading to systems "bottlenecks." To alleviate or
avoid such bottlenecks, networks require  continual improvements in stored  data
retrieval  speed. In addition, the development  of more complex applications and
operating systems has created the  need for increased network storage  capacity.
Meanwhile,  the mission critical, enterprise-wide  nature of networked computing
often requires a  high level of  "fault tolerance," or  the ability to  preserve
data from loss and to provide uninterrupted system service even if an individual
data  storage device fails. The emergence of data-intensive applications such as
multimedia and  video-on-demand  are  further driving  the  demands  for  speed,
capacity and reliability in network storage devices.

    Mylex  RAID controllers enable increased speed, greater capacity, and a high
degree of fault  tolerance in  network storage  and I/O  functions. RAID,  which
stands  for redundant array  of independent disks, is  a method for distributing
data across several disk drives and allowing the server microprocessor to access
those drives simultaneously, thus increasing system storage I/O performance.  In
addition, lost data on any drive can be recreated using special RAID algorithms,
thus  ensuring the  immediate availability  of RAID  protected data  even in the
event of a  disk drive failure.  Mylex controllers support  all major  operating
systems and bus types, and the Company endeavors to rapidly develop products for
new  bus, operating  system, and  platform standards  as they  are defined. RAID
controller  products  based  on  the   recently  introduced  PCI  bus   standard
represented  a majority of its disk array product sales in the second quarter of
1995. The Company believes that its proprietary software and firmware are a  key
competitive advantage in the RAID controller market.

    The  Company's goal is to  maintain its position as  the leading supplier of
RAID controllers  and to  become a  leader and  standard setter  in the  broader
market  for  intelligent  I/O  solutions  in  the  networked  personal  computer
marketplace. In pursuit of this goal, the Company has worked in cooperation with
Intel to develop  an implementation  of RAID for  the system  board which  would
offer  an extremely cost-effective RAID solution  for users of personal computer
networks. The  Company believes  that this  product, which  is scheduled  to  be
introduced along with the Intel P6 processor in 1996, will substantially broaden
the potential market for its RAID solutions.

                                       3
<PAGE>
                                  THE OFFERING

<TABLE>
<S>                                            <C>
Common Stock offered by the Company..........  2,000,000 shares
Common Stock to be outstanding after
the offering.................................  16,825,617 shares (1)
Use of proceeds..............................  General corporate purposes, including working
                                               capital, and repayment of borrowings
Nasdaq National Market symbol................  MYLX
</TABLE>

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

<TABLE>
<CAPTION>
                                                                                                       SIX MONTHS
                                                                                                         ENDED
                                                          YEAR ENDED DECEMBER 31,                       JUNE 30,
                                           -----------------------------------------------------  --------------------
                                             1990       1991       1992       1993       1994       1994       1995
                                           ---------  ---------  ---------  ---------  ---------  ---------  ---------
<S>                                        <C>        <C>        <C>        <C>        <C>        <C>        <C>
CONSOLIDATED STATEMENTS OF OPERATIONS
 DATA:
  Net Sales..............................  $  47,867  $  54,268  $  48,769  $  45,234  $  62,513  $  27,775  $  39,216
  Gross Margin...........................     12,450      6,634      6,657      8,778     22,191      8,992     14,679
  Operating Income (Loss)................      5,703     (2,892)    (4,008)    (4,024)    10,624      3,633      7,436
  Income (Loss) Before Income Tax........      5,692     (3,297)    (4,461)    (4,490)    10,061      3,363      7,319
  Net Income (Loss)......................      3,384     (2,205)    (3,000)    (4,444)     7,509      2,522      4,757
  Net Income (Loss) Per Share............  $    0.28  $   (0.19) $   (0.25) $   (0.35) $    0.51  $    0.18  $    0.30
  Weighted Average Common and Equivalent
   Shares................................     12,299     11,337     12,103     12,740     15,247     14,591     15,783
</TABLE>

<TABLE>
<CAPTION>
                                                                                               JUNE 30, 1995
                                                                       DECEMBER 31, 1994  ------------------------
                                                                       -----------------                  AS
                                                                            ACTUAL         ACTUAL    ADJUSTED (2)
                                                                       -----------------  ---------  -------------
<S>                                                                    <C>                <C>        <C>
CONSOLIDATED BALANCE SHEET DATA:
  Working Capital....................................................      $  16,562      $  22,352    $  55,112
  Total Assets.......................................................         27,358         38,949    $  69,209
  Shareholders' Equity...............................................         17,760         23,620    $  56,380
<FN>
--------------------------
(1)  Based on shares outstanding as of June 30, 1995. Does not include 2,407,000
     shares  of Common Stock reserved  for issuance, as of  June 30, 1995, under
     the Company's  stock option  plans. On  June 30,  1995, 563,000  shares  of
     Common  Stock were issuable upon the  exercise of outstanding options under
     those plans.

(2)  Adjusted to reflect the sale by  the Company of 2,000,000 shares of  Common
     Stock  offered hereby, at  an offering price  of $17.50 per  share, and the
     application of the estimated net proceeds therefrom. See "Use of  Proceeds"
     and "Capitalization."
</TABLE>

    UNLESS  OTHERWISE INDICATED, THE INFORMATION IN THIS PROSPECTUS ASSUMES THAT
THE  UNDERWRITERS   WILL  NOT   EXERCISE   THEIR  OVER-ALLOTMENT   OPTION.   SEE
"UNDERWRITING."

                                       4
<PAGE>
                                  RISK FACTORS

    IN  ADDITION TO THE OTHER INFORMATION IN THIS PROSPECTUS, THE FOLLOWING RISK
FACTORS SHOULD BE CONSIDERED CAREFULLY IN EVALUATING MYLEX CORPORATION (TOGETHER
WITH ITS  SUBSIDIARIES,  THE  "COMPANY"  OR "MYLEX")  AND  ITS  BUSINESS  BEFORE
PURCHASING THE SHARES OFFERED IN THIS PROSPECTUS.

DEPENDENCE ON RAID CONTROLLER PRODUCTS

    Sales  of  the  Company's  RAID  ("redundant  array  of  independent disks")
controller products accounted for 81% of the Company's net sales in 1994 and 91%
of net sales in the first six months of 1995. RAID controller products are  used
principally   in  personal  computer  network  applications.  The  use  of  RAID
technology in the  personal computer  network market is  relatively recent,  and
there  can be no assurance that another  technology will not replace RAID in the
disk array controller marketplace or that there will be widespread acceptance or
continuing growth of the use of RAID products in general, or the Company's  RAID
controllers  in  particular, in  that market.  Furthermore,  even if  the market
continues to grow, there can  be no assurance that the  Company will be able  to
continue  to market and sell its RAID controller products at the same rates, and
with the same gross margins, it has  experienced to date. In addition, in  order
to  be able to compete  successfully in the RAID  controller market, the Company
will have to develop and  market new RAID controller  products. There can be  no
assurance  that  the Company  will be  able  to develop  and introduce  new RAID
controller products in a timely  manner or that any  such products will gain  or
sustain market acceptance.

CUSTOMER CONCENTRATION

    The   Company's  revenue  depends   on  a  customer   base  that  is  highly
concentrated. The  Company's  three largest  customers,  International  Business
Machines  ("IBM"),  Digital Equipment  Corporation ("DEC"),  and Hewlett-Packard
Company ("HP"), collectively  accounted for 53%  of the Company's  net sales  in
1994.  In the first  six months of 1995,  sales to IBM,  DEC and HP collectively
accounted for 56% of the Company's net sales. Sales to IBM alone represented 31%
of the Company's net sales during the first six months of 1995. A limited number
of customers and customer orders have accounted for, and are likely to  continue
to  account for, a substantial  portion of the Company's  revenue in any period.
The Company  has  no long-term  purchase  commitments from  its  customers,  and
customers  generally  may cancel  their orders  on 30-days  notice. Accordingly,
there can be  no assurance that  orders from existing  customers, including  the
Company's principal customers, will continue at their historical levels, or that
the  Company will be  able to obtain orders  from new customers.  Loss of one or
more of the Company's current  customers, particularly a principal customer,  or
cancellation  or  rescheduling of  orders already  placed, could  materially and
adversely affect the Company's business and operating results.

    The Company's OEM  customers have integrated  the Company's RAID  controller
products  into their servers and storage  subsystems. Any of these OEM customers
may choose  to  develop  their  own RAID  controller  products  which  could  be
substituted  for, and thus reduce or eliminate their purchases of, the Company's
RAID controller products. Most of the Company's OEM customers, and  particularly
its  principal  customers,  have extensive  product  development  experience and
expertise, substantial  financial  resources and  ongoing,  substantial  product
development activities. As a result, it is likely that those customers have been
and  will be involved  in RAID development  programs on a  continuing basis. Any
material reduction  in  purchases  of  a RAID  controller  product  by  any  OEM
customers as a result of such customer developing its own competing product will
materially and adversely affect the Company's business and operating results.

COMPETITION

    The markets for the Company's RAID controller products have been competitive
and  are  likely to  become more  competitive.  Furthermore, there  are numerous
companies with established reputations in  the controller and personal  computer
related  markets,  many  of  which have  greater  financial,  manufacturing, and
marketing resources than those of the Company.

                                       5
<PAGE>
    Some  OEMs  (such  as  Compaq  and  Dell)  have  developed  their  own  RAID
controllers.  As  noted,  the  customers historically  accounting  for  the most
significant volumes of the  Company's sales are major  OEMs, any of which  could
develop  their own controllers  at any time, rather  than purchase such products
from the Company.

    The Company's ability to compete successfully in either the RAID  controller
market  or  the personal  computer network  market depends  upon its  ability to
continue to develop reliable products that  obtain market acceptance and can  be
sold at competitive prices while maintaining adequate gross margin levels. There
can be no assurance that the Company will be able to compete successfully in the
future  in the market for such products  or that other companies may not develop
products with greater performance or more  favorable prices and thus reduce  the
demand for the Company's products. Furthermore, as more companies enter the RAID
controller  market, the Company expects to  encounter price competition for such
products which could materially and adversely affect its gross margin.

NEW PRODUCTS AND TECHNOLOGICAL CHANGES

    The markets for the Company's products are characterized by rapidly changing
technology, evolving  industry  standards  and  relatively  short  product  life
cycles.  The  Company's  ability  to compete  successfully  will  depend  on its
ability, on a timely and cost-effective basis, to enhance its existing  products
and  to introduce new products, such as its  new PCI and SCSI to SCSI disk array
product families, with  features that  meet changing  customer requirements  and
with  competitive prices.  There can  be no assurance  that the  Company will be
successful in doing  so. Delays in  product enhancement and  development or  the
failure  of the Company's new products or enhancements to gain market acceptance
could have an adverse effect on the Company's business and operating results.

    Despite testing, new  products may  be affected by  quality, reliability  or
interoperability  problems, which could result  in returns, delays in collecting
accounts receivable, unexpected service or warranty expenses, reduced orders and
a decline in the  Company's competitive position. In  addition, there can be  no
assurance  that  new  products  or  technologies  developed  by  others,  or the
emergence of new industry standards, will  not render the Company's products  or
technologies  noncompetitive or obsolete. For  example, efforts by the Company's
OEM customers and  other manufacturers  to integrate  additional functions  into
system boards, to use chip sets that incorporate additional functionality, or to
design  their  own  controllers  and  other  devices  rather  than  purchase the
Company's products  could  have  a  material adverse  effect  on  the  Company's
business and operating results.

    All  of the Company's RAID  controller products are based  on the Intel i960
processor. If another company develops  a processor for RAID applications  which
renders  the  i960  processor  noncompetitive,  whether  as  a  result  of cost,
specifications or other advantages of the  new processor, or if Intel ceases  to
produce  the i960 processor or support the Company's efforts to develop products
based on the i960 processor, the Company will be forced to develop new  products
based  on another processor. Such development  efforts will be costly, and there
can be  no assurance  that the  Company will  be able  to timely  complete  such
development  efforts or  that such  products, if  developed, will  have the same
degree of market acceptance  or the same gross  margin as the Company's  present
RAID products.

POTENTIAL FLUCTUATIONS IN QUARTERLY RESULTS

    The Company's quarterly operating results could vary significantly depending
on  a  number  of  factors,  such  as the  timing  of  receipt  and  shipment of
significant orders, changes in the mix of the Company's sales to OEM  customers,
distributors, value added resellers and other channels of distribution, the cost
and  timing of new product releases and  product enhancements by the Company and
its competitors, variations in the  Company's product mix, market acceptance  of
new  or  enhanced versions  of the  Company's products,  changes in  pricing and
promotion policies  by the  Company  and its  competitors and  general  economic
conditions.  Quarterly sales depend on the  volume and timing of orders received
during a  quarter,  which are  difficult  to forecast.  At  the same  time,  the
Company's expenses are based, in part, on its expectations as to customer demand
for  its products. Mylex customers generally have  the right to cancel orders on
30-day notice,  and the  cancellation of  orders already  placed could  have  an
adverse   effect  on  the  Company's  operating   results  in  any  quarter.  In

                                       6
<PAGE>
addition, due to the timing of customer orders, the Company often ships products
representing in excess of a  majority of its revenues  for a quarter during  the
last  month of that quarter. This factor  increases the risk of an unanticipated
fluctuation in quarterly net  sales because, in the  last month of the  quarter,
the  Company has limited opportunities to take  corrective action in the event a
customer cancels, reschedules or otherwise delays a shipment or it appears  that
the  Company may be  incapable of timely manufacturing  all orders scheduled for
shipment in  that month.  Operating results  falling below  expectations in  any
quarter could have an adverse effect on the market price of the Company's Common
Stock.

SUPPLIER AND COMPONENT DEPENDENCE

    The  Company  depends heavily  on its  suppliers to  provide materials  on a
timely basis, at  reasonable prices.  Although many  of the  components for  the
Company's  products are available  from numerous sources  at competitive prices,
some of  the most  critically needed  components, such  as the  i960  processor,
ASICs,  and SCSI  chips, are  presently available to  the Company  from only one
source.  Furthermore,  because  of  high  industry  demand  for  many  of  those
components,  their manufacturers  may, from  time to time,  not be  able to make
delivery on orders on a timely  basis. In addition, manufacturers of  components
on which the Company relies may choose, for numerous reasons, not to continue to
make  those components, or the next generation of those components, available to
Mylex.

    The Company  and  its competitors  are  currently experiencing  a  worldwide
shortage  of DRAM SIMM  memory modules and  surface mount capacitors  due to the
significant demand for  such components.  The Company is  attempting to  develop
different  designs for its products which would  allow it to avoid or reduce its
dependence on components for  which there is a  shortage. However, no  assurance
can  be  given  that  the results  of  such  design efforts  will  be  timely or
effective.

    The Company has  no long-term supply  contracts. There can  be no  assurance
that  the Company will be able to obtain,  on a timely basis, all the components
it requires. If the Company cannot obtain essential components as required,  the
Company  could  be unable  to meet  demand for  its products,  thereby adversely
affecting its operating results and  allowing competitors to gain market  share.
In  addition, scarcity  of such  components could  result in  cost increases and
adversely affect the Company's gross margin.

SUSTAINING AND MANAGING GROWTH

    The Company is currently undergoing a  period of rapid growth and there  can
be  no assurance that such growth can be sustained or managed successfully. This
expansion has  resulted in  a higher  fixed cost  structure which  will  require
increased  revenue in  order to maintain  historical gross  margin and operating
margins. There can be  no assurance that the  Company will obtain the  increased
orders  necessary to generate increased revenue  sufficient to cover this higher
cost structure. Failure by the Company to manage growth successfully or have the
systems and  capacities necessary  to sustain  its growth  could materially  and
adversely affect the Company's business and operating results.

INTERNATIONAL SALES AND OPERATIONS

    Sales to customers outside the United States accounted for approximately 16%
of  the Company's revenue in 1994 and 28% of its revenue in the first six months
of 1995,  and the  Company expects  that international  sales will  continue  to
represent  a significant portion  of the Company's  revenue. International sales
pose certain risks  not faced  by companies  that limit  themselves to  domestic
sales.  Fluctuations in  the value  of foreign  currencies relative  to the U.S.
dollar, for example, could  make the Company's  products less price  competitive
and,  if  the Company  in the  future denominates  any of  its sales  in foreign
currencies, result in losses  from foreign currency transactions.  International
sales  also could be adversely affected by factors beyond the Company's control,
including the imposition  of government controls,  export license  requirements,
restrictions  on technology  exports, changes in  tariffs and  taxes and general
economic and political conditions. In some  countries, the law does not  protect
the Company's intellectual property rights to the same extent as the laws in the
United States.

                                       7
<PAGE>
DEPENDENCE ON KEY PERSONNEL
    The  Company's success  depends to a  significant degree  upon the continued
contributions of key personnel, many of  whom would be difficult to replace  and
are  not subject  to employment  or noncompetition  agreements. If  any of these
employees were to leave the Company,  the Company's business could be  adversely
affected.  The Company  believes its future  success will also  depend, in large
part, upon  its  ability  to  attract and  retain  highly  skilled  engineering,
managerial,  sales and  marketing personnel.  Competition for  such personnel is
intense, and there can be  no assurance that the  Company will be successful  in
attracting and retaining such personnel.

PROPRIETARY TECHNOLOGY CLAIMS
    The  Company  does not  presently hold  any patents  applicable to  its RAID
controller products and relies on a  combination of trade secret, copyright  and
trademark  laws and employee and third-party nondisclosure agreements to protect
its intellectual property rights. There can be no assurance that the steps taken
by  the  Company   to  protect   its  rights   will  be   adequate  to   prevent
misappropriation  of the  Company's technology  or to  preclude competitors from
developing  products   with  features   similar  to   the  Company's   products.
Furthermore,  there can be no assurance  that, in the future, third-parties will
not assert  infringement claims  against  the Company  or  with respect  to  its
products  for  which  the  Company has  indemnified  certain  of  its customers.
Asserting the Company's  rights or  defending against  third-party claims  could
involve  substantial  expense,  thus  materially  and  adversely  affecting  the
Company's results of operations. In the event a third party were successful in a
claim that one of the Company's  products infringed its proprietary rights,  the
Company  may have to  pay substantial damages or  royalties, remove that product
from the  marketplace or  expend  substantial amounts  in  order to  modify  the
product  so that it  no longer infringes  such proprietary rights,  any of which
could have an  adverse effect  on its business  and results  of operations.  See
"Business -- Intellectual Property" and "Business -- Litigation."

LITIGATION
    The  Company is  party to  an arbitration  proceeding initiated  by American
Megatrends, Inc. ("AMI") in 1992. In the arbitration, AMI has alleged breach  of
contract  and other  claims relating  to an  agreement under  which AMI licensed
rights to the Company to use a basic input/output system for a 386 system  board
that  the Company ceased  using in its  products prior to  the initiation of the
proceedings. AMI is seeking  damages in an unspecified  amount. The Company  has
asserted  certain defenses and  counterclaims and intends  to continue to defend
this action vigorously. It should be noted, however, that legal proceedings  can
be  unpredictable, no assurance can be given  that the Company will prevail, and
an unfavorable outcome could  have an adverse effect  on the Company's  business
and results of operations.

    The former Chief Executive Officer of the Company, Dr. M.A. Chowdry, filed a
complaint  against  the  Company  and its  outside  directors  in  October 1994,
claiming breach  of an  employment  agreement with  the Company.  The  complaint
alleges  compensatory and consequential damages of  over $6 million (which would
vary based on the price of the Company's Common Stock) and unspecified  punitive
damages.  The  Company  believes  it has  meritorious  defenses  and  intends to
vigorously defend this lawsuit. Nonetheless,  given the unpredictable nature  of
legal proceedings, no assurance can be given that the Company will prevail.

    Although  there can  be no  assurance given with  respect to  the results of
legal proceedings, based on information  currently available to the Company,  it
believes  that  it  does not  have  potential  liability with  respect  to these
proceedings that would have a material  adverse effect on the Company.  However,
the  Company's costs of defending these  proceedings have been substantial, will
fluctuate from quarter to quarter and  are likely to increase. See "Business  --
Litigation."

POSSIBLE VOLATILITY OF STOCK PRICE
    The  market price  of the  Company's Common Stock  could be  subject to wide
fluctuations in response  to such factors  as, among others,  variations in  the
Company's  expected or actual results  of operations, competitors' announcements
concerning products and operating results,  and market conditions, which may  be
unrelated to the Company's operating performance.

                                       8
<PAGE>
                                USE OF PROCEEDS

    The  net proceeds to Mylex from the sale of 2,000,000 shares of Common Stock
offered  by  the   Company  are  estimated   to  be  approximately   $32,760,000
($37,734,000  if the Underwriters exercise their over-allotment option in full),
based on  the  offering  price of  $17.50  per  share and  after  deducting  the
underwriting discount and estimated offering expenses payable by the Company.

    Mylex  intends to  use the proceeds  of this offering  for general corporate
purposes, including working  capital. Approximately $2,500,000  will be used  to
pay  down borrowings under the Company's bank line of credit. Advances under the
line bear interest at  a floating rate  equal to the bank's  prime rate and  the
line  matures on May 15, 1996. The Company presently has no other specific plans
for any significant portion of the proceeds.

    The Company  may use  a portion  of the  proceeds to  acquire  technologies,
products  or businesses that complement the  Company's current business, as such
opportunities may arise. Although the  Company does consider such  acquisitions,
from  time to time, as a part of its normal business operations and planning, it
has no present commitments or agreements with respect to any such  acquisitions.
Pending  their use, the  proceeds will be invested  in short-term, United States
Government or investment grade interest-bearing securities.

                          PRICE RANGE OF COMMON STOCK

    The Company's  Common  Stock  is  traded  on  the  National  Association  of
Securities  Dealers, Inc. Automated Quotation System ("Nasdaq") under the symbol
"MYLX." The following table sets forth the range of high and low sales prices of
the Company's Common Stock for the periods indicated, as reported by the  Nasdaq
National Market.

<TABLE>
<CAPTION>
                                                          HIGH      LOW
                                                         -------  -------
<S>                                                      <C>      <C>
FISCAL 1993
  First Quarter.........................................  $6 1/4   $4 1/8
  Second Quarter........................................   5 1/2    3 1/2
  Third Quarter.........................................   5 5/8    3 1/2
  Fourth Quarter........................................   7 3/4    4 3/4
FISCAL 1994
  First Quarter.........................................   7 3/8    4 7/8
  Second Quarter........................................   5 3/4    3 5/8
  Third Quarter.........................................   9 5/8    4 3/8
  Fourth Quarter........................................  11 3/4    7 3/4
FISCAL 1995
  First Quarter.........................................  12 1/16   8 3/8
  Second Quarter........................................  13 3/8   10
  Third Quarter (through September 20, 1995)............  18 1/2   13 1/2
</TABLE>

    On  September 20, 1995, the last reported sale price for the Common Stock on
the Nasdaq National Market was $17.83 per share. As of June 30, 1995, there were
approximately 650 holders of record of the Common Stock.

                                DIVIDEND POLICY

    To date, Mylex has not declared or paid cash dividends on its Common  Stock.
The  Company presently intends to  retain all earnings for  use in the operation
and development of its  business and, therefore, does  not expect to declare  or
pay any cash dividends on its Common Stock in the foreseeable future.

                                       9
<PAGE>
                                 CAPITALIZATION

    The  following table sets forth (i) the actual capitalization of the Company
at June  30,  1995, and  (ii)  as adjusted  to  reflect the  Company's  sale  of
2,000,000  shares of  Common Stock pursuant  to this offering  and the Company's
receipt of the estimated net proceeds from this offering (based on the  offering
price  of $17.50  per share  and after  deducting the  underwriting discount and
estimated offering expenses payable by the Company):

<TABLE>
<CAPTION>
                                                                           JUNE 30, 1995
                                                                       ----------------------
                                                                        ACTUAL    AS ADJUSTED
                                                                       ---------  -----------
                                                                           (IN THOUSANDS)

<S>                                                                    <C>        <C>
Line of credit payable to bank.......................................  $   2,500   $  --

Current portion of long-term capital lease obligations...............        359         359
                                                                       ---------  -----------
Long-term capital lease obligations..................................        343         343
                                                                       ---------  -----------
Shareholders' equity
  Common Stock, $.01 par value (25,000,000 shares authorized;
   14,825,617 shares outstanding, 16,825,617 shares, as adjusted)
   (1)...............................................................        148         168
  Additional paid-in capital.........................................     14,627      47,367
  Retained earnings..................................................      8,845       8,845
                                                                       ---------  -----------
    Total shareholders' equity.......................................  $  23,620  $   56,380
                                                                       ---------  -----------
                                                                       ---------  -----------
Total liabilities and shareholders' equity...........................  $  38,949  $   69,209
                                                                       ---------  -----------
                                                                       ---------  -----------
<FN>
------------------------

(1)  Does not include  2,407,000 shares  of Common Stock  reserved for  issuance
     under  the Company's stock option plans as  of June 30, 1995. On that date,
     563,000 shares of Common Stock  were issuable upon exercise of  outstanding
     options.
</TABLE>

                                       10
<PAGE>
                       SELECTED HISTORICAL FINANCIAL DATA

    The  following selected historical financial data are qualified by reference
to,  and  should  be  read  in  conjunction  with,  the  consolidated  financial
statements,  related notes and other financial information included elsewhere in
this Prospectus. The selected  historical financial data set  forth for each  of
the five fiscal years ended December 31, 1994, are derived from the consolidated
financial  statements of the Company included  elsewhere in this Prospectus. The
selected historical financial  data for and  as of the  six-month periods  ended
June  30, 1994 and 1995, are unaudited, but in the opinion of management include
all adjustments (consisting only of normal recurring adjustments) necessary  for
a  fair  presentation  of  the  Company's  financial  position  and  results  of
operations as of and  for such periods.  The results of  operations for the  six
months  ended June 30,  1995, may not be  indicative of the  results that may be
expected for the year ending December 31, 1995.

<TABLE>
<CAPTION>
                                                                                                 SIX MONTHS ENDED
                                                       YEAR ENDED DECEMBER 31,                       JUNE 30,
                                        -----------------------------------------------------  --------------------
                                          1990       1991       1992       1993       1994       1994       1995
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                                           (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                     <C>        <C>        <C>        <C>        <C>        <C>        <C>
CONSOLIDATED STATEMENTS OF OPERATIONS
 DATA:
Net Sales.............................  $  47,867  $  54,268  $  48,769  $  45,234  $  62,513  $  27,775  $  39,216
Cost of Sales.........................     35,417     47,634     42,112     36,456     40,322     18,783     24,537
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Gross Margin........................     12,450      6,634      6,657      8,778     22,191      8,992     14,679
Operating Expenses:
  Sales and Marketing.................      2,424      2,792      3,370      2,962      3,592      1,618      2,582
  Research and Development............      1,325      2,655      2,824      2,474      3,332      1,566      2,078
  General and Administrative..........      2,527      2,938      2,515      2,690      4,643      2,175      2,583
  Provision for Uncollectible Accounts
   Receivable(1)......................        471      1,141      1,956      4,676     --         --         --
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
    Total Operating Expense...........      6,747      9,526     10,665     12,802     11,567      5,359      7,243
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
    Operating Income (Loss)...........      5,703     (2,892)    (4,008)    (4,024)    10,624      3,633      7,436
Other Income (Expense), Net...........        (11)      (405)      (453)      (466)      (563)      (270)      (117)
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
Income (Loss) Before Income Tax.......      5,692     (3,297)    (4,461)    (4,490)    10,061      3,363      7,319
Provision for Income Tax..............      2,308     (1,092)    (1,461)       (46)     2,552        841      2,562
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
Net Income (Loss).....................  $   3,384  $  (2,205) $  (3,000) $  (4,444) $   7,509  $   2,522  $   4,757
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
Net Income (Loss) Per Share...........  $    0.28  $   (0.19) $   (0.25) $   (0.35) $    0.51  $    0.18  $    0.30
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
Weighted Average Common and Equivalent
 Shares...............................     12,299     11,337     12,103     12,740     15,247     14,591     15,783

CONSOLIDATED BALANCE SHEET DATA:
  Working Capital.....................  $  11,107  $   8,405  $   6,286  $   3,461  $  16,562  $   7,198  $  22,352
  Total Assets........................     25,929     22,433     23,694     14,640     27,358     21,315     38,949
  Shareholders' Equity................     11,420     10,060      7,963      4,664     17,760      8,489     23,620
<FN>
--------------------------
(1)  Virtually all  of the  provision  for 1993  and  1992 related  to  accounts
     receivables  from  Northgate Computer  Systems,  Inc. and  Tandon Computer,
     respectively. See "Certain  Relationships and Related  Transactions" for  a
     description of certain matters related to Northgate.
</TABLE>

                                       11
<PAGE>
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

OVERVIEW

    Mylex  was incorporated  in 1983. Until  late 1993,  the Company's principal
business was  the  development and  sale  of system  boards  (so-called  "mother
boards")  for personal  computers. Virtually all  of its sales  of such products
were to OEMs  and wholesale  distributors in  the personal  computer market.  In
1993,  the Company began withdrawing from the system board business, due in part
to the  intense price  competition it  experienced for  those products  and  the
resulting  pressures  on  gross  margin.  In  1992,  the  Company  completed the
development of  its  first  disk  array  controller  product,  which  used  RAID
technology,  and  introduced that  product  into the  personal  computer network
market. By 1994, the Company's RAID controller products had become its principal
products  and  its  sales  of  system  board  products  had  become   relatively
insignificant.

    The  Company's RAID controller customers are OEMs, system integrators, value
added resellers and  computer distributors  and dealers.  The Company's  revenue
from  its RAID controller products represented 44%, 81% and 91% of its net sales
for 1993, 1994 and the first six months of 1995, respectively. Aggregate revenue
derived from sales of its products to its three principal OEMs, IBM, DEC and HP,
represented 28%, 53% and 56% of its net  sales for 1993, 1994 and the first  six
months  of 1995,  respectively, with  revenue from  IBM representing  31% of net
sales for the first  six months of 1995.  Revenue from foreign sales,  including
foreign  sales to United  States OEMs, represented  21%, 16% and  28% of its net
sales for 1993, 1994 and the first  six months of 1995, respectively. A  limited
number  of customers are likely to continue to account for a substantial portion
of the Company's revenue  in any period,  and the loss  of a principal  customer
could  materially  and adversely  affect  the Company's  business  and operating
results.

    Due principally to the  timing of customer orders,  the Company often  ships
products  representing in  excess of  a majority  of its  revenue for  a quarter
during the last month of that quarter. As a result, the risk of an unanticipated
fluctuation in quarterly net  sales is increased because,  by the last month  of
the  quarter, the Company has limited opportunities to take corrective action in
the event a customer cancels, reschedules  or otherwise delays a shipment or  it
appears  that  the  Company  is incapable  of  timely  manufacturing  all orders
scheduled for shipment in that month.

RESULTS OF OPERATIONS

    The following table sets forth certain consolidated statement of  operations
data as a percentage of net sales for the periods indicated.

<TABLE>
<CAPTION>
                                                                       SIX MONTHS
                                                                         ENDED
                                          YEAR ENDED DECEMBER 31,       JUNE 30,
                                          -----------------------    --------------
                                          1992     1993     1994     1994     1995
                                          -----    -----    -----    -----    -----
<S>                                       <C>      <C>      <C>      <C>      <C>
Net Sales...............................  100.0%   100.0%   100.0%   100.0%   100.0%
Cost of Sales...........................   86.4     80.6     64.5     67.6     62.6
                                          -----    -----    -----    -----    -----
  Gross Margin..........................   13.6     19.4     35.5     32.4     37.4
Operating Expenses:
  Sales and Marketing...................    6.9      6.5      5.8      5.8      6.6
  Research and Development..............    5.8      5.5      5.3      5.7      5.3
  General and Administrative............    5.2      6.0      7.4      7.8      6.6
  Provision For Uncollectible Account
   Receivable...........................    4.0     10.3     --       --       --
                                          -----    -----    -----    -----    -----
    Total Operating Expense.............   21.9     28.3     18.5     19.3     18.5
                                          -----    -----    -----    -----    -----
    Operating Income (Loss).............   (8.3)    (8.9)    17.0     13.1     18.9
Other Income (Expense), Net.............   (0.9)    (1.0)    (0.9)    (1.0)    (0.3)
                                          -----    -----    -----    -----    -----
Income (Loss) Before Income Tax.........   (9.2)    (9.9)    16.1     12.1     18.6
Provision for Income Tax................   (3.0)    (0.1)     4.1      3.0      6.5
                                          -----    -----    -----    -----    -----
Net Income (Loss).......................   (6.2)%   (9.8)%   12.0%     9.1%    12.1%
                                          -----    -----    -----    -----    -----
                                          -----    -----    -----    -----    -----
</TABLE>

                                       12
<PAGE>
SIX MONTHS ENDED JUNE 30, 1994 AND JUNE 30, 1995

    NET  SALES.  Net sales for the six months ended June 30, 1995, increased 41%
to $39.2 million, compared to $27.8  million during the corresponding period  of
1994.  Sales  increased primarily  due to  a  63% increase  in shipments  of the
Company's RAID controller  products, particularly its  PCI products, which  more
than  offset  the decline  in sales  of  the Company's  system boards  and other
peripheral products during the period.

    GROSS MARGIN.   Gross margin for  the six  months ended June  30, 1995,  was
$14.7  million, or 37.4% of net sales, compared to $9.0 million, or 32.4% of net
sales, for the six months ended June 30, 1994. The increase in gross margins was
attributable to increased sales of  the Company's higher margin RAID  controller
products  during the six months ended June  30, 1995, which more than offset the
declining margins of the Company's system boards during that period.

    SALES AND MARKETING.  Sales and marketing expenses for the six months  ended
June  30, 1995,  totaled $2.6 million,  or 6.6%  of net sales,  compared to $1.6
million, or 5.8% of net sales, for the six months ended June 30, 1994. Increases
in sales and marketing expenditures resulted from increased staffing levels  and
commission  expenses, as well  as increased advertising,  promotional and travel
expenses.

    RESEARCH AND DEVELOPMENT.   Research  and development expenses  for the  six
months ended June 30, 1995, totaled $2.1 million, or 5.3% of net sales, compared
to  $1.6 million, or 5.7% of net sales,  for the six months ended June 30, 1994.
Research and development expenses  increased during the  six months ending  June
30, 1995, due to higher salaries and increased staff levels.

    GENERAL AND ADMINISTRATIVE.  General and administrative expenses for the six
months ended June 30, 1995, totaled $2.6 million, or 6.6% of net sales, compared
to  $2.2 million, or 7.8% of net sales,  for the six months ended June 30, 1994.
General and administrative  expenses increased  due to  higher compensation  and
benefit  expenses as a  result of increased staffing  levels and bonus expenses.
Legal expenses also  increased over  those incurred  during the  same period  in
1994.

    INCOME  TAXES.  The Company's effective tax rate during the six months ended
June 30, 1995, was 35%,  as compared to 25% in  the corresponding period of  the
prior year. The tax rate for the first six months of 1995 reflects the impact of
the reduction of previously available tax benefits.

FISCAL 1993 AND 1994

    NET  SALES.  Net sales increased by 38%  to $62.5 million in 1994 from $45.2
million in 1993. Sales  of the Company's RAID  controller products increased  by
151% in 1994 over 1993 levels, reflecting the Company's design wins with its OEM
customers  in late 1993 and 1994. The  net sales growth in 1994 was attributable
to overall market  growth and strong  demand for the  Company's RAID  controller
products.  Sales from RAID controller products represented 81% of total sales in
1994 compared to 44% in 1993.

    GROSS MARGIN.  The Company's gross margin was $22.2 million, or 35.5% of net
sales, in  1994, compared  to $8.8  million, or  19.4% of  sales, in  1993.  The
increase  was  due to  higher margin  RAID  controller products  representing an
increased percentage of the product mix. Gross margin also increased because  of
the  replacement of several costly components on the controller boards with less
costly ASIC chips designed by the Company.

    SALES AND MARKETING.   Sales and  marketing expenses were  $3.6 million,  or
5.8%  of net sales, in 1994, compared to  $3.0 million, or 6.5% of net sales, in
1993. The increase  in sales  and marketing expenses  was primarily  due to  the
addition  of employees to manage the  increased volume and to higher commission,
advertising and travel related expenses.

                                       13
<PAGE>
    RESEARCH AND DEVELOPMENT.   Expenditures for  research and development  were
$3.3  million, or 5.3% of net sales, in  1994, compared to $2.5 million, or 5.5%
of net sales, in 1993. Although  research and development expenses increased  by
35%  from 1993 to 1994, these expenses,  as a percentage of net sales, decreased
slightly between the periods due to the significant growth of net sales in 1994.
The growth in research and development  expenses was primarily due to  increased
technology  development efforts  related to  intelligent input/output management
projects.

    GENERAL AND ADMINISTRATIVE.   General and administrative expenses  increased
to  $4.6 million, or  7.4% of net sales,  in 1994, compared  to $2.7 million, or
6.0% of net sales, in 1993. The increase in general and administrative  expenses
during  1994 was due to  the addition of personnel to  support the growth in the
Company's  business  and  significantly  increased  legal  expenses  over  those
incurred in 1993.

    PROVISION   FOR  UNCOLLECTIBLE  ACCOUNTS  RECEIVABLE.    The  provision  for
uncollectible accounts receivable decreased by $4.7 million in 1994. The Company
did not incur  any bad  debt expense  during the  year as  accounts written  off
during  1994 had been fully reserved as  of December 31, 1993. The Company wrote
off $4.8 million of uncollectible accounts receivable during 1994, $4.6  million
of  which was  related to  products shipped  to Northgate  Computer Systems, Inc
("Northgate"). The receivable from Northgate was fully reserved during 1993  due
to  the deterioration  of Northgate's  financial condition.  The receivable from
Northgate was written  off during  1994 as a  result of  Northgate's filing  for
bankruptcy,  after an analysis of the assets  remaining to satisfy the claims of
Northgate's secured and unsecured creditors.

    INCOME TAXES.  The Company's combined federal and state effective income tax
provision rate of 25% is less than  the federal statutory rate of 34%  primarily
due  to a change in  the beginning of the year  valuation allowance for which no
benefit had been recognized.

FISCAL 1992 AND 1993

    NET SALES.  The Company's  net sales for 1993  decreased by $3.6 million  to
$45.2  million, compared to $48.8 million for 1992. Sales declined primarily due
to aggressive  price competition  leading to  a reduction  in both  the  selling
prices  and unit volumes of the Company's  system boards. Sales of the Company's
RAID controller  products increased  significantly during  1993 due  to  growing
industry  acceptance of  the Company's  RAID disk  array technology  and product
family.

    GROSS MARGIN.  Gross margin for 1993 increased to $8.8 million, or 19.4%  of
net  sales,  compared to  $6.7 million,  or 13.6%  of net  sales, for  1992. The
increase in gross margin in fiscal 1993 was due to the increased sales of higher
margin RAID  controllers products,  the  sales of  which  more than  offset  the
declining  margins  of the  Company's system  boards.  Sales of  RAID controller
products accounted for 44.4% of net sales  during 1993, compared to 2.4% of  net
sales during 1992.

    SALES  AND MARKETING.   Sales and  marketing expenses were  $3.0 million, or
6.5% of net sales, for 1993, compared to $3.4 million, or 6.9% of net sales, for
1992. The decrease in sales and marketing expenses was due to a reduction in the
number of sales and marketing personnel supporting the system board product line
and lower advertising expenses.

    RESEARCH AND  DEVELOPMENT.   Research  and  development expenses  were  $2.5
million,  or 5.5% of net  sales, for 1993, compared to  $2.8 million, or 5.8% of
net sales, for 1992. This decrease in research and development expenses was  due
to  the  completion  or  termination  of  several  projects  during  early 1993,
resulting in lower engineering consulting and prototype expenses.

    GENERAL AND ADMINISTRATIVE.   General and  administrative expenses for  1993
totaled $2.7 million, or 6.0% of net sales, compared to $2.5 million, or 5.2% of
net  sales, for 1992. This  increase was primarily due  to higher legal expenses
and director  and  officer  liability insurance  premiums.  Those  increases  in
general  and  administrative  expenses  were only  partially  offset  by reduced
compensation and benefit expenses, resulting  from lower staffing levels  during
1993, as compared to 1992.

                                       14
<PAGE>
    PROVISION   FOR  UNCOLLECTIBLE  ACCOUNTS  RECEIVABLE.    The  provision  for
uncollectible accounts receivable increased from  $2.0 million for 1992 to  $4.7
million  for 1993. The  increase was due  to the rapid  deterioration during the
third quarter  of  1993 in  the  financial condition  of  one of  the  Company's
customers, Northgate.

    INCOME  TAXES.  The Company had a net operating loss for 1993. The financial
statements reflect a tax benefit of $46,100 for that year, as compared to a  tax
benefit  of $1.5 million for 1992. The Company had recorded substantially all of
the tax benefits available to it in years prior to 1993.

QUARTERLY INFORMATION

    The following  tables  present  selected  quarterly  consolidated  financial
information for the periods indicated in both dollars and as a percentage of net
sales.  The information derives from unaudited consolidated financial statements
that, in the  opinion of  management, reflect all  normal recurring  adjustments
necessary  to fairly present the information.  The results of operations for any
quarter do not necessarily  indicate the results to  be expected for any  future
period.

<TABLE>
<CAPTION>
                                                                     FISCAL 1994                           FISCAL 1995
                                                   ------------------------------------------------  ------------------------
                                                    MARCH 31,    JUNE 30,     SEPT. 30,   DEC. 31,    MARCH 31,    JUNE 30,
                                                      1994         1994         1994        1994        1995         1995
                                                   -----------  -----------  -----------  ---------  -----------  -----------
                                                                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                                <C>          <C>          <C>          <C>        <C>          <C>
Net Sales........................................   $  13,642    $  14,132    $  16,119   $  18,620   $  17,085    $  22,131
Cost of Sales....................................       9,655        9,128       10,378      11,161      10,813       13,724
                                                   -----------  -----------  -----------  ---------  -----------  -----------
  Gross Margin...................................       3,987        5,004        5,741       7,459       6,272        8,407
Operating Expense:
  Sales and Marketing............................         774          844          946       1,028       1,125        1,457
  Research and Development.......................         735          830          814         953         957        1,121
  General and Administrative.....................         875        1,300        1,014       1,454         973        1,610
                                                   -----------  -----------  -----------  ---------  -----------  -----------
    Total Operating Expense......................       2,384        2,974        2,774       3,435       3,055        4,188
                                                   -----------  -----------  -----------  ---------  -----------  -----------
    Operating Income.............................       1,603        2,030        2,967       4,024       3,217        4,219
Other Income (Expense), Net......................       (151)        (119)        (119)       (174)        (78)         (38)
                                                   -----------  -----------  -----------  ---------  -----------  -----------
Income Before Income Tax.........................       1,452        1,911        2,848       3,850       3,139        4,181
Provision for Income Tax.........................         363          478          712         999       1,099        1,463
                                                   -----------  -----------  -----------  ---------  -----------  -----------
Net Income.......................................   $   1,089    $   1,433    $   2,136   $   2,851   $   2,040    $   2,718
                                                   -----------  -----------  -----------  ---------  -----------  -----------
                                                   -----------  -----------  -----------  ---------  -----------  -----------
Net Income Per Share.............................   $    0.07    $    0.10    $    0.14   $    0.19   $    0.13    $    0.17
                                                   -----------  -----------  -----------  ---------  -----------  -----------
                                                   -----------  -----------  -----------  ---------  -----------  -----------
Weighted Average Common and Equivalent Shares....      15,249       14,548       15,718      15,540      15,513       15,845
</TABLE>

<TABLE>
<CAPTION>
                                                                     FISCAL 1994                           FISCAL 1995
                                                   ------------------------------------------------  ------------------------
                                                    MARCH 31,    JUNE 30,     SEPT. 30,   DEC. 31,    MARCH 31,    JUNE 30,
                                                      1994         1994         1994        1994        1995         1995
                                                   -----------  -----------  -----------  ---------  -----------  -----------
<S>                                                <C>          <C>          <C>          <C>        <C>          <C>
Net Sales........................................       100.0%       100.0%       100.0%      100.0%      100.0%       100.0%
Cost of Sales....................................        70.8         64.6         64.4        59.9        63.3         62.0
                                                   -----------  -----------  -----------  ---------  -----------  -----------
  Gross Margin...................................        29.2         35.4         35.6        40.1        36.7         38.0
Operating Expense:
  Sales and Marketing............................         5.7          6.0          5.9         5.5         6.6          6.6
  Research and Development.......................         5.4          5.9          5.0         5.2         5.6          5.1
  General and Administrative.....................         6.4          9.2          6.3         7.8         5.7          7.2
                                                   -----------  -----------  -----------  ---------  -----------  -----------
    Total Operating Expense......................        17.5         21.1         17.2        18.5        17.9         18.9
                                                   -----------  -----------  -----------  ---------  -----------  -----------
    Operating Income.............................        11.7         14.3         18.4        21.6        18.8         19.1
Other Income (Expense), Net......................       (1.1)        (0.8)        (0.7)       (0.9)       (0.5)        (0.2)
                                                   -----------  -----------  -----------  ---------  -----------  -----------
Income Before Income Tax.........................        10.6         13.5         17.7        20.7        18.3         18.9
Provision for Income Tax.........................         2.6          3.4          4.4         5.4         6.4          6.6
                                                   -----------  -----------  -----------  ---------  -----------  -----------
Net Income.......................................         8.0%        10.1%        13.3%       15.3%       11.9%        12.3%
                                                   -----------  -----------  -----------  ---------  -----------  -----------
                                                   -----------  -----------  -----------  ---------  -----------  -----------
</TABLE>

                                       15
<PAGE>
    The  Company's results  of operations over  the six quarters  ended June 30,
1995 reflect  generally increasing  net sales,  excluding the  first quarter  of
1995.  Net sales  in the  first quarter  of 1995  were affected  by the industry
transition from EISA bus based  RAID controllers to the  new PCI bus based  RAID
controllers.  Certain of the  PCI server product  introductions of the Company's
customers were delayed from  the first to the  second quarters of 1995,  thereby
delaying  some purchases of the Company's  PCI RAID controllers until the second
quarter. Additionally,  the  Company's product  mix  shifted more  towards  RAID
controller  products from the  system board and  other peripheral products. RAID
controller products sales represented 79% of the Company's net sales in each  of
the first three quarters of 1994, rose to 84% of net sales in the fourth quarter
of  1994 and the first quarter of 1995 and rose again to 96% of net sales in the
second quarter of 1995.

    Within the RAID product family, sales of disk array controllers by bus  type
were as stated in the following table:

                        NET SALES OF DISK ARRAY PRODUCTS
                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                           Q1 94        Q2 94        Q3 94        Q4 94        Q1 95        Q2 95
                                        -----------  -----------  -----------  -----------  -----------  -----------
<S>                                     <C>          <C>          <C>          <C>          <C>          <C>
EISA Disk Array.......................  $   3,243    $   8,214    $  10,157    $  10,155    $   5,295    $   4,640
Micro Channel DA......................      7,468        2,641        1,828        1,902        3,220        3,816
PCI DA................................      --             275          564        3,015        5,029       10,985
SCSI DA...............................      --              41          226          637          810        1,790
                                        -----------  -----------  -----------  -----------  -----------  -----------
Total Disk Array......................  $  10,711    $  11,171    $  12,775    $  15,709    $  14,354    $  21,231
</TABLE>

                 PERCENTAGE OF NET SALES OF DISK ARRAY PRODUCTS

<TABLE>
<CAPTION>
                                      Q1 94      Q2 94      Q3 94      Q4 94      Q1 95      Q2 95
                                     --------   --------   --------   --------   --------   --------
<S>                                  <C>        <C>        <C>        <C>        <C>        <C>
EISA Disk Array....................     30.3%      73.5%      79.5%      64.6%      36.9%      21.9%
Micro Channel DA...................     69.7       23.6       14.3       12.1       22.4       18.0
PCI DA.............................     --          2.5        4.4       19.2       35.0       51.7
SCSI DA............................     --          0.4        1.8        4.1        5.7        8.4
                                     --------   --------   --------   --------   --------   --------
Total Disk Array...................    100.0%     100.0%     100.0%     100.0%     100.0%     100.0%
Disk Array % of Total Sales........     78.5%      79.0%      79.3%      84.4%      84.0%      95.9%
</TABLE>

    Gross  margin percentage over the  six quarters ranged from  a low of 29% in
the first quarter of 1994 to  a high of 40% in  the fourth quarter of 1994,  and
has  generally increased due to the shift  in product mix toward RAID controller
products. Gross margin was particularly high  in the fourth quarter of 1994  due
to  favorable channel and customer mix and  better absorption of fixed costs due
to the increase in volume.  Gross margin declined in  the first quarter of  1995
from the previous quarter due primarily to a less favorable channel and customer
mix. RAID controller product sales through the alternate channels (distributors,
system  integrators  and VARs),  which generally  involve higher  gross margins,
totaled approximately $7.0 million during 1994, and have increased each  quarter
in  1995, totaling $7.5 million  through the first six  months. Gross margin was
negatively affected by rising prices of DRAM SIMM modules in the second  quarter
of 1995.

    Sales  and marketing expenses  increased over the six  quarter period as the
Company increased its staffing  levels to position  itself to support  increased
OEM  sales  volumes and  to implement  its strategy  of selling  RAID controller
products through distributors, systems integrators and VARs. Sales and marketing
expenses as  a percent  of sales  have  increased to  6.6% in  each of  the  two
quarters in 1995, as compared to a range of 5.5% to 6.0% during 1994.

    Research  and development expenses increased over  the six quarter period as
the Company implemented new  technology projects related  to the development  of
RAID  controllers  for new  bus  types and  subsequent  generations of  its RAID
controller products that are intended to provide

                                       16
<PAGE>
enhanced performance and features. Research and development expenses have varied
as a percentage of sales during the six quarter period from a low of 5.0% in the
third quarter of 1994 to a high of 5.9% in the second quarter of 1994  primarily
due  to  changes in  sales  volumes, as  well  as variations  in  recruiting and
relocation expenses for newly hired engineers.

    General and administrative  expenses have  fluctuated over  the six  quarter
period  due  to  variations  in  legal expenses  related  primarily  to  the AMI
arbitration and  the dispute  with the  Company's former  CEO. Additionally,  as
sales  volumes have increased,  additional employees have  been hired to support
these higher  volumes. As  a  percentage of  sales, general  and  administrative
expenses  have ranged from a low of 5.7% in  the first quarter of 1995 to a high
of 9.2% in the second quarter of 1994.

    The Company's effective income tax rate during each of the quarters in  1994
was  25%, and rose to 35% in the two quarters of 1995 as a result of a reduction
of previously available tax benefits.

LIQUIDITY AND CAPITAL RESOURCES

    As of June 30,  1995, the Company's working  capital had increased to  $22.4
million  from  $16.6 million  at  December 31,  1994.  This increase  in working
capital was due primarily to a $4.3 million growth in accounts receivable and an
$8.6 million  rise in  inventories, which  offset  a decrease  in cash  of  $1.7
million  and an increase in accounts payable of $5.9 million, for a net increase
in working capital of $5.7 million.

    Cash balances decreased by  $1.7 million from $3.9  million at December  31,
1994, to $2.2 million at June 30, 1995. Cash used by operating activities during
the  first six months of 1995 totaled  $1.9 million, and resulted from increases
in inventories and accounts receivable, only partially offset by an increase  in
accounts  payable. The  Company used  $400,000 in  investing activities  for the
purchase of capital  equipment in the  same period. Cash  provided by  financing
activities  during the period totaled $700,000 and resulted from the exercise of
options and warrants to purchase Common Stock.  The net change in cash and  cash
equivalents during the first six months of 1995 totaled $1.7 million.

    Net  accounts  receivable  increased  to $15.1  million  at  June  30, 1995,
compared to $10.8  million at December  31, 1994, an  increase of $4.3  million.
Accounts receivable increased over the balance at the end of 1994 because a high
percentage of the second quarter sales took place in June, the last month of the
quarter,  and thus the related accounts  receivable were not collected until the
following quarter.

    Inventory increased to  $18.9 million at  June 30, 1995,  compared to  $10.2
million at December 31, 1994. Inventory increased over the six month period as a
result  of the Company's decisions to  purchase additional components to support
generally higher sales levels, as well  as to increase its minimum stock  levels
of DRAM SIMM modules to a two month supply.

    Accounts  payable increased  to $9.1 million  at June 30,  1995, compared to
$3.2 million at December  31, 1994, an increase  of $5.9 million. This  increase
was  due to  the high  percentage of inventory  purchases made  during the final
month of the quarter.

    The Company's line of credit with Imperial Bank (the "Bank") expires May 15,
1996, bears interest  at the  Bank's prime  rate and is  secured by  all of  the
Company's  assets. Borrowings are  subject to an overall  limit of $8.0 million.
Under the agreement, the Company must maintain average profitability of $500,000
after tax  over each  successive two  quarter  period and  must meet  a  working
capital financial ratio.

    The  Company presently expects to finance near-term and long-term operations
and capital  requirements  through  the  net proceeds  of  this  offering,  cash
provided  by continuing operations, existing cash balances, and borrowings under
bank lines of credit. The Company believes that such capital resources will meet
the Company's working capital needs through at least the end of fiscal 1996.

                                       17
<PAGE>
                                    BUSINESS

    Mylex designs, manufactures and markets  RAID controllers that provide  high
performance,  capacity  enhancing fault  tolerant  storage and  input/output, or
"I/O,"  solutions  for  client/server   computer  networks.  Mylex   controllers
integrate  the Company's proprietary ASICs,  firmware and software with standard
industry components. More than  twenty leading network  file server and  storage
subsystem  OEMs,  including IBM,  HP,  DEC, and  NEC,  have designed  Mylex RAID
controllers into their server and storage subsystem products.

INDUSTRY BACKGROUND

    A major  trend in  computing  environments called  "client/server"  networks
began  in the mid-1980s. This trend was  driven by the proliferation of personal
computers and  the  development  of  networking  applications  that  distributed
computer  power to the desktop.  Client/server computing provides an alternative
to the  highly centralized,  relatively  expensive mainframe  and  mini-computer
systems  that connect many "dumb" terminals to  a central processor and were the
mainstays of  the computing  world until  this decade.  A client/server  network
consists  of multiple desktop "client"  computers with their own microprocessors
and memory and  the ability to  access files and  applications stored on  higher
performance  "servers." Client/server  networks offer  certain cost, performance
and flexibility advantages over traditional mainframe and mini-computer systems.
As a  result,  client/  server  computing has  spread  rapidly.  Network  server
shipments alone grew from $2.3 billion in sales in 1989 to $7.2 billion in sales
in  1994, according to International Data  Corporation, which estimates that the
market for servers will  grow at a  compound annual rate in  excess of 20%  from
1994 to 1998.

    A  key component of client server networks  is data storage and related data
access functions. These chores are  typically handled by disk array  subsystems,
which  include disk drives, enclosures,  controllers, and disk storage software.
The market for disk  array subsystems for  networked personal computers  totaled
approximately  $3.8 billion in 1994, according  to the market research firm Disk
Trend, Inc., which also projects the market to grow to $10.0 billion in 1998.

    The trend toward  client/server computing has  placed particular demands  on
network  storage systems  and related I/O  functions. The  development of faster
microprocessors and more  robust computer bus  architectures in network  systems
has  often outstripped  the capabilities of  data storage  and I/O technologies,
leading to  system  "bottlenecks."  To  alleviate  or  avoid  such  bottlenecks,
networks  require  continual improvements  in  stored data  retrieval  speed. In
addition, the development of more complex applications and operating systems has
created the need for increased network storage capacity. Meanwhile, the  mission
critical,  enterprise-wide nature of  networked computing often  requires a high
level of "fault tolerance,"  or the ability  to preserve data  from loss and  to
provide  uninterrupted system service even if  an individual data storage device
fails. The  emergence  of data-intensive  applications  such as  multimedia  and
video-on-demand  are  further  driving  the  demands  for  speed,  capacity  and
reliability in network storage devices.

THE RAID SOLUTION

    A solution to the storage and I/O speed, capacity and reliability challenges
presented by network computing  was first proposed by  a team of researchers  at
the University of California at Berkeley in a paper published in the late 1980s.
They  called their solution "RAID," or redundant array of inexpensive disks (now
known in the industry as redundant array of independent disks). RAID is a way of
distributing data  in  stripes  across  several disk  drives  and  allowing  the
microprocessor  to access  those drives  simultaneously, thus  increasing system
storage I/O performance. In addition, the RAID configuration can provide a  high
degree of fault tolerance because it continuously calculates and stores a unique
parity value, using exclusive/or logic, or "XOR," to accompany each data stripe.
Should  any drive fail,  the remaining drives  in the system  may use the parity
value to reconstruct the data on  the failed drive, thus ensuring the  immediate
availability of RAID protected data even in the event of a disk drive failure.

                                       18
<PAGE>
    RAID  is available in several levels that differ in the ways they break down
data for  storage  and achieve  fault  tolerance.  RAID Level  0,  for  example,
distributes  data in  stripes across the  disk drives  in an array  but does not
calculate the  parity values  necessary for  fault tolerance.  Level 1  achieves
fault  tolerance by creating mirror images of all data and storing each image on
a different disk  than the  disk used  to store  the original.  Because Level  1
creates  exact  duplicates of  all stored  data, it  uses one-half  of available
storage capacity  to  achieve  fault  tolerance. Level  5  distributes  data  in
stripes,  calculates parity  values for all  stripes and  distributes the parity
values evenly across all disks in the array. Because level 5 uses the equivalent
of just one drive in the disk array to store parity values, it increases  usable
system  storage  capacities  over  levels  achieved by  RAID  Level  1.  Level 3
dedicates one of  the disks in  the array to  the storage of  parity values  and
employs the rest of the disks to read and write information in parallel. Because
Level  3 uses all drives to read  and write information, it can accommodate only
one transaction at a time. By allowing  parallel reads, however, Level 3 is  the
best  choice for applications  requiring access to  large amounts of information
stored sequentially, such as multimedia or video-on-demand.

    The following table illustrates certain of the functions and benefits of the
different RAID levels:

                                [CHART]

                                       19
<PAGE>
BENEFITS OF RAID

    RAID technology can bring three key benefits to a networked computer system:

  IMPROVED PERFORMANCE

    Computers  operate  no  faster  than  their  slowest  components.  Currently
available  disk  drives often  cannot keep  pace with  system demands  and often
present a system bottleneck. RAID alleviates the bottleneck by distributing data
over many disk  drives. By  enabling the  drives to  operate concurrently,  RAID
increases  the speed with which users may  read and write stored information and
enhances overall system performance. In  addition, by managing the I/O  function
for  the storage system, a  RAID controller frees the  main processor to use its
processing power for other important network management and application tasks.

  INCREASED CAPACITY

    By allowing access  to an  array of  independent disk  drives, RAID  enables
computer  networks to have access to significantly higher storage capacities. To
create  super-capacity  storage  systems,  it   is  possible  to  link   several
SCSI-to-SCSI  RAID controllers to  a single expansion  slot, freeing other slots
for other peripherals.

  FAULT TOLERANCE

    Due to their electromechanical nature,  disk drives typically suffer  higher
failure  rates than other system components.  By providing data redundancy, RAID
preserves data when drives  fail and allows system  operators to replace  failed
drives  without shutting  down their  systems, providing  a high  level of fault
tolerance.

    Mylex believes that RAID offers the following potential benefits in a number
of different network computer applications:
<TABLE>
<S>                    <C>                               <C>
                             RAID APPLICATIONS AND BENEFITS

<CAPTION>

      INDUSTRY                   APPLICATION                    POTENTIAL BENEFITS
---------------------  --------------------------------  --------------------------------
<S>                    <C>                               <C>
Insurance              Policy Holder Data Bases          Fault Tolerance; Cost
                                                         Effectiveness
Market Research        Survey Analyses                   Capacity; Cost Effectiveness
Manufacturing          CAD CAM Data                      Fault Tolerance; Performance
Local Government       Environmental Data                Capacity; Cost Effectiveness
Newspapers             Storage and Editing               Capacity; Performance
Communications         Systems Control, Internet,        Sequential Performance; Fault
                       Dialogue, Movies, Commercials     Tolerance
Software Products      Data Bases; Source Code           Fault Tolerance; Performance;
                       Libraries                         Capacity
Accounting Services    Client Data                       Fault Tolerance
Oil Companies          Exploration and Statistical Data  Fault Tolerance; Capacity;
                                                         Performance
Brokerage Firms        Trading Floor Transaction Data    High I/O Levels; Fault
                                                         Tolerance; Capacity
Aeronautics            Flight Simulation Programs        Performance; Capacity
Telephone Companies    Customer Site Voicemail           Fault Tolerance; Capacity
                       Installations
</TABLE>

                                       20
<PAGE>
    The wide range of network applications that can benefit from RAID has led to
the rapid adoption of RAID by network server OEMs. Based on the Company's review
and related  estimates  of  information  about  server  shipments  published  by
International   Data  Corporation  and  information  about  RAID  configurations
published by Disk Trend, the Company estimates that approximately 20% of servers
shipped in 1994 had RAID configurations and that, by 1997, approximately 30%  of
servers  shipped will have RAID configurations.  OEMs shipping servers with RAID
include Compaq, IBM, DEC, HP, and NEC.

MYLEX'S ROLE IN THE RAID SOLUTION

    Mylex designs, manufactures  and markets RAID  disk array controllers.  More
than  twenty  of the  leading network  file server  and storage  subsystem OEMs,
including IBM, HP,  DEC, and  NEC, have  designed Mylex  controllers into  their
server and storage subsystem products.

    RAID  controllers separate data  into stripes for  storage on multiple disks
and then reassemble data  when the host computer  requests it. For certain  RAID
configurations   that  provide   fault  tolerance,  the   controller  also  must
continuously calculate the parity values necessary to reconstruct data lost when
drives  fail.  In  addition  to  implementing  RAID  algorithms,  Mylex's   RAID
controllers  also perform all  SCSI storage device  handling tasks, thus freeing
the host computer's central processor to perform other tasks.

    Mylex has  designed products  to support  the EISA,  Micro Channel  and  PCI
computer bus architecture. Those busses evolved to increase the speed of the I/O
function.  The  original IBM  AT system,  for example,  employed a  computer bus
architecture known  as Industry  Standard  Architecture, or  "ISA," that  had  a
maximum  data transfer speed of 8 megabytes  per second, (or "MB/s.") After ISA,
an Extended  Industry Standard  Architecture,  or "EISA,"  bus that  allows  the
transfer of data in bursts of up to 33 MB/s and an IBM proprietary Micro Channel
bus  that allows the transfer of data in bursts of up to 40 MB/s were developed.
In early 1993,  an industry consortium  headed by Intel  defined the  Peripheral
Connect  Interface, or  "PCI," bus to  increase maximum  potential data transfer
speeds to  bursts of  132 MB/s.  The  Company endeavors  to bring  its  products
rapidly  to  market and  believes  that it  was the  first  to introduce  a RAID
controller for  the  PCI  bus.  Mylex  also has  developed  SCSI  to  SCSI  RAID
controllers  that  provide an  interface between  the server  microprocessor and
peripherals for virtually any hardware platform.

                                       21
<PAGE>
    The  architecture of  Mylex RAID  controller products  includes a  number of
features designed to increase  the storage capacity and  I/O speed of any  given
system.  Most servers  use a  SCSI interface  to access  tape and  disk storage.
Although there are exceptions, most server network expansion slots are  equipped
with  just one SCSI channel.  In a standard (or  "narrow") configuration, a SCSI
channel can  manage up  to seven  independent  disk drives  and achieve  a  data
transfer speed of 10 MB/s. So-called "wide-SCSI" can manage up to 15 independent
disk  drives and achieve a data transfer rate of 20 MB/s. Mylex controllers have
the capability to include and address  simultaneously up to five SCSI  channels,
increasing  the system's ability to address storage  space and the speed of data
transfer through any expansion slot. It  also is possible to link several  Mylex
controllers to the same slot to achieve storage super-capacities.

    In  addition  to  offering  multiple SCSI  channels,  each  Mylex controller
includes a dynamic memory cache for  the temporary storage of information  being
written to or retrieved from the disk array.

    THE  DIAGRAMS ON THIS  PAGE AND THE NEXT  ILLUSTRATE HOW MYLEX'S CONTROLLERS
READ AND WRITE STORED DATA:

                   TYPICAL RAID CONTROLLER READ COMMAND FLOW

                                    [CHART]

<TABLE>
<S>  <C>
<FN>
------------------------
(1)  The host instructs the controller to read data from a logical drive.
(2)  The i960 processor determines that the  data resides on multiple disks  and
     instructs  the SCSI I/O  processors, or "SIOPs," to  retrieve data from the
     disk drives in the array.
(3)  The SIOPs transfer data from the disks  to the memory cache and notify  the
     i960 upon completion.
(4)  The i960 sets up the host interface device to transfer data from the memory
     cache to system memory. Upon completion, the host interface device notifies
     the i960, which in turn, notifies the host processor.
</TABLE>

                                       22
<PAGE>
Depending  on the product, the size of memory  caches range from 2 to 64 MB. The
cache is not partitioned and allows the portion of the memory devoted to writing
to vary with demand. The cache assists Mylex products designed for use with  the
PCI  bus  to  achieve  sustained  data transfer  rates  of  29  MB/s  in reading
sequential information from the disk array, and  can burst data at the full  132
MB/s that the PCI bus can accomodate.

    In   addition   to  unique   architecture,  Mylex   controllers  incorporate
proprietary software  and  firmware,  including algorithms  that  implement  the
different  RAID levels that Mylex products support, algorithms for data caching,
I/O device  drivers and  configuration administration  and monitoring  utilities
with  graphical user interfaces. The software  and the firmware work together to
detect disk drive failures or conditions  likely to lead to disk drive  failures
using the S.M.A.R.T. predictive failure analysis standard, as well as to monitor
certain performance factors.

                   TYPICAL RAID CONTROLLER WRITE COMMAND FLOW

                                    [CHART]

<TABLE>
<S>  <C>
<FN>
------------------------
(1)  The host instructs the controller to write data to a logical drive.
(2)  The  i960 processor sets up the host  interface device to transfer the data
     to the cache. Upon completion, the host interface device notifies the i960.
(3)  The i960 determines that some data may be required from the SCSI disks  for
     parity value computation and instructs the SIOPs to retrieve this data.
(4)  The  SIOPs transfer data  from the disks  to the cache  and notify the i960
     upon completion. The i960 then computes parity values.
(5)  The i960 instructs the SIOPs to transfer data and parity values to the disk
     drives.
(6)  The SIOPs transfer data  from the cache  to the disks  and notify the  i960
     upon completion. The i960, in turn, notifies the host.
</TABLE>

                                       23
<PAGE>
COMPANY STRATEGY

    The  Company's goal is to  maintain its position as  the leading supplier of
RAID controllers  and to  become a  leader and  standard setter  in the  broader
market  for  intelligent  I/O  solutions  in  the  networked  personal  computer
marketplace. To achieve this goal, the  Company has adopted a business  strategy
incorporating the following elements.

  MAINTAIN MARKET LEADERSHIP IN RAID SOLUTIONS

    Mylex  intends that its next generation of RAID controllers will continue to
support  multiple  system  buses  and  include  various  design  and  functional
improvements  at  the high  end  of the  RAID  controller market,  including the
capability to support levels of RAID and high data transfer speeds necessary for
video on demand and multimedia applications. Lower cost designs of the Company's
RAID controller products also should expand market opportunities for the Company
at the low  end of  the RAID  controller market.  For example,  the Company  has
recently  developed a software suite that  will allow the implementation of RAID
on the system board,  which is intended  to give it  the opportunity to  capture
market share at the low end of the RAID controller market.

  LEVERAGE OEM AND INDUSTRY RELATIONSHIPS

    Mylex has an installed base of RAID controllers in more than 140,000 servers
or  storage subsystems  distributed by  its customers.  The Company  maintains a
dialogue with its OEM customers regarding the features and capabilities required
for  the   computer  networks   of  tomorrow,   thus  facilitating   the   rapid
implementation  of new technologies and standards  in its products. For example,
as a result of those dialogues the Company obtained customer input that  enabled
Mylex  to  include additional  features  in the  design  of its  RAID controller
products based  on the  recently introduced  PCI bus  standard. These  PCI-based
controllers  have been  designed into  server or  storage subsystem  products of
virtually all of the Company's major OEM customers. The Company is also actively
engaged in the  pursuit of available  cooperative and co-development  activities
with  other  industry leaders  in the  hardware,  software, silicon  and systems
business. For example, the Company's initiative to implement RAID on the  system
board  was a  cooperative effort  with Intel  in which  Mylex provided  a design
reference specific  to  the Company's  RAID  solutions for  Intel's  forthcoming
i960*RP  I/O processor.  As part  of this effort,  the Company  also developed a
software suite that makes it possible to implement RAID on the system board.  In
June  1995, Mylex announced that  it will offer this  suite of RAID software and
firmware for  use  with the  Intel  processor, starting  delivery  with  Intel's
initial  shipments presently  scheduled for the  first half of  1996. As another
example of the Company's pro-active strategy, Mylex teamed with AT&T, IBM, Intel
and XPoint Technologies to form the BusBIOS Advisory Committee.

  FOCUS ON SOFTWARE

    Mylex believes its software and firmware are a key competitive advantage for
the Company in the RAID controller market. In addition to programs  implementing
RAID  algorithms, Mylex software includes  I/O device drivers, and configuration
administration and monitoring  utilities with  a graphical  user interface.  The
Company  also  designed  and  markets an  Array  Enclosure  Monitoring Interface
software program, or "AEMI,"  to monitor various  characteristics of disk  array
enclosures, including thermal thresholds, power supply status, and management of
replacement and "hot spare" drives.

    Mylex believes its RAID on the system board technology, which is designed to
provide  users of personal computer  networks an extremely cost-effective method
of implementing RAID in their networks, will substantially broaden the potential
market for  its RAID  solutions. The  Company plans  to distribute  RAID on  the
system  board  through a  two step  process.  First, it  will make  the hardware
technology available at no cost to OEMs who manufacture their own RAID hardware.
Mylex will then market  separately the software suite  needed to enable RAID  to
work on the system board. As a result, the Company expects that the introduction
of  RAID  on  the system  board  will  lead to  software  sales  representing an
increasing share of its business.

                                       24
<PAGE>
  CONSOLIDATE TECHNOLOGY

    In addition to  continuing development  of RAID  controller products,  Mylex
will  pursue the acquisition and development of technologies that complement its
intelligent I/O solutions in an effort to enlarge the Company's presence in  the
storage  management market  for networked  personal computers.  The Company also
provides high performance Ethernet  cards and has licensed  rights to build  the
PNA960,  a peer-to-peer  Ethernet Switch designed  for the PCI  bus. The Company
also has the  capability to develop  proprietary chip designs,  as shown by  its
in-house  design of a bus master chip  for its PCI-based RAID controller when an
alternative chip was not available in the marketplace. In addition to developing
RAID controller products, the Company is exploring alternatives for acquiring or
developing SCSI chip technology  for incorporation in its  products, as well  as
certain other technologies involving the communication aspects of networking.

  EXPAND ALTERNATE CHANNELS

    Historically,  Mylex has relied extensively on sales to major OEM customers.
While the Company expects OEM sales to continue to account for a large share  of
its  business,  it also  intends  to expand  sales  of RAID  controller products
through other channels of distribution, including leading distributors,  systems
integrators,  value added resellers and others. Since the beginning of 1994, the
Company has added six employees to  its alternative channel sales group,  opened
sales offices in the United Kingdom and Florida for overseas sales, and added 10
manufacturing  representatives in the United States and Canada. The Company also
renewed its distribution  agreements with several  distributors, including  Tech
Data, Merisel, Ingram Micro and Gates/Arrow, and entered into relationships with
additional  distributors such  as Avnet  Corporation and  Wyle Electronics. RAID
sales into alternate  channels totaled  approximately $7.0 million  in 1994  and
$7.5  million in  the first six  months of  1995. Mylex intends  to continue its
efforts to build ACS sales in the future.

  EXPAND GLOBAL PRESENCE

    Sales to customers  outside the United  States increased from  approximately
16%  of the Company's  revenue in 1994  to 28% of  its revenue in  the first six
months of 1995. Since mid-1994,  several overseas OEMs, including NEC,  Fujitsu,
Toshiba  and Siemens Nixdorf,  have selected Mylex  controllers for their server
product lines. In addition,  several existing major  OEM customers have  changed
their   previous  practice   of  accepting   shipment  of   all  Mylex  products
domestically, with the  result that  the Company  now is  exporting products  to
those  OEMs'  affiliates  overseas.  Through  the  expansion  of  its  sales and
marketing team and the expansion of alternate channel sales, the Company intends
to continue its efforts to penetrate international markets.

PRODUCTS

    During the last  half of 1993,  the Company shifted  its principal  activity
from  the supply of system board products  to the manufacture of I/O devices and
storage management  enhancing computer  peripheral products.  Mylex designs  its
products  to  provide solutions  for  all popular  operating  systems, including
Novell Netware,  Windows  NT, SCO  UNIX,  Solaris, Unixware  and  Banyan.  Mylex
products  also work with all popular  platforms. These include personal computer
platforms  that  use  PCI,  EISA,  and  Micro  Channel  bus  architectures   and
workstation  platforms,  including Sun  Microsystems,  Silicon Graphics  and IBM
RS-6000 workstations that use the Company's  SCSI to SCSI products. Since  Mylex
introduced  its  first  PCI  compatible products  in  1994,  sales  of PCI-based
controllers have increased from $275,000 in the second quarter of 1994 to almost
$11.0 million in  the second quarter  of 1995. See  "Management's Discussion  of
Financial Condition and Results of Operations -- Quarterly Information."

  RAID CONTROLLERS

    Each  bus-based  Mylex RAID  controller  includes a  proprietary application
specific integrated circuit,  or "ASIC," that  serves as an  interface with  the
host  computer, an Intel i960 RISC processor, up to five SCSI channels to manage
the transfer of  data to and  from the disk  drives in the  array and a  dynamic
cache  memory ranging  in size  from 2 to  64 MB,  depending on  the product, to
buffer the transfer of  information to and from  the disks. The controller  also
includes  Mylex  firmware  residing  on  an  EEPROM  that  implements  the  RAID
algorithms and the algorithms necessary  for the cache and supporting  software,
including I/O drivers, configuration utilities and system monitoring programs.

                                       25
<PAGE>
    Mylex  disk  array controllers  DAC960E, DAC960  Micro Channel,  DAC960P and
DAC960PD provide high  performance, fault  tolerant data  storage solutions  for
EISA,  Micro Channel  and PCI bus  platforms. The Mylex  SCSI-to-SCSI disk array
controllers  (DAC960S/SI/SE)  bring  the  performance  of  RAID  technology   to
virtually  any hardware  platform without  requiring special  host software. The
Mylex disk array products  are designed for both  internal and external  storage
options  and  are  compatible with  most  commonly used  operating  systems. The
selling prices  for Mylex  RAID  controllers range  from approximately  $400  to
approximately  $3,000, depending  on their features  and sales  volumes, and the
distribution  channels  through  which  they  are  sold.  The  following  tables
summarize the Company's current principal RAID controller product offerings:
<TABLE>
<S>         <C>                            <C>                            <C>        <C>
                                      MYLEX RAID CONTROLLERS

<CAPTION>
                                                                                      CUMULATIVE
                                                                                         UNITS
                                                                                        SHIPPED
                                                                            FIRST       THROUGH
 PRODUCT               MARKET                    SPECIFICATIONS(1)         SHIPPED   JUNE 30, 1995
----------  -----------------------------  -----------------------------  ---------  -------------
<S>         <C>                            <C>                            <C>        <C>
DAC960P     Mid range to high end          29MB/s sustained sequential      Q2 1994       15,153
             PCI-based file and database   read
             servers with heavy access     performance
             requirements                  2500 I/Os per sec.
                                           RAID levels 0, 1, 5 and 0+1
DAC960PD    Mid range to high end          29MB/s sustained sequential      Q4 1994        4,537
             PCI-based file and database   read
             servers with heavy access     performance
             requirements                  2500 I/Os per sec.
                                           RAID levels 0, 1, 5 and 0+1
                                           Ultra high density connectors
DAC960PL    Small to mid range PCI-based   16MB/s sustained sequential      Q1 1995        4,333
             file and database servers     read
             with moderate access          performance
             requirements                  2000 I/Os per sec.
                                           RAID levels 0, 1, 5 and 0+1
DAC960      Mid range to high end Micro    13 to 20 MB/s sustained          Q3 1992       47,317
Micro        Channel-based file and        sequential read performance
Channel      database servers with heavy   1500 to 2500 I/Os per sec.
             access requirements           RAID levels 0, 1, 5
DAC960E     Mid range to high end range    13MB/s sustained sequential      Q2 1992       65,889
             EISA-based file and database  read
             servers with heavy access     performance
             requirements                  1500 I/Os per sec.
                                           RAID levels 0, 1, 5 and 0+1
DAC960S     High end servers and           Host independent multiple        Q3 1994        2,730
             workstations with heavy       host
             access requirements           capacity expandable to almost
                                           unlimited storage
                                           Fast and wide SCSI
DAC960SI    High end servers and           Host independent multiple        Q4 1994          628
             workstations with heavy       host
             access requirements           capacity expandable to almost
                                           unlimited storage
                                           Fast and wide SCSI
<FN>
------------------------------
(1)  I/Os  describe the  number of  random read  and write  operations involving
     small blocks of data.
</TABLE>

    Products currently under development include new SCSI to SCSI controllers, a
controller optimized for  multimedia and  video imaging,  controllers that  will
provide  for  high  speed serial  interfaces  to  disk drives,  a  low-cost RAID
solution and  a  RAID implementation  for  the system  board.  There can  be  no
assurance  that the  Company will introduce  its products  under development. If
these products are  introduced, there can  be no assurance  that they will  gain
market acceptance or that their sales will produce adequate gross margins.

                                       26
<PAGE>
  NETWORK ENHANCEMENT PRODUCTS

    In addition to RAID controllers, Mylex produces the PNA960, an internal peer
to peer Ethernet Switch designed for the PCI bus, under a license agreement that
the  Company  entered  with  XPoint  Technologies  in  early  1995.  The  PNA960
incorporates an on board microprocessor  which relieves the server processor  of
additional  task  management  and  substantially  increases  the  speed  of data
transfer over the network. The distribution price of the PNA960 is $1,795. Mylex
also provides high performance Ethernet  Network Cards. All network  enhancement
products are compatible with major operating systems and platforms.

  SYSTEM BOARDS

    Historically,  the  industry  has recognized  Mylex  as a  supplier  of high
quality, high  performance  system  boards. While  off-shore  manufacturers  now
dominate  the low end of this business, a  market remains in the high end server
and  multi-processor  applications.  The  Company  continues  to  provide  small
quantities  of system  boards and enclosures  to system integrators  and to OEMs
with annual sales under  $150 million. Selling prices  for the Company's  system
boards  currently generally range between $200 and $400. With the implementation
of system boards incorporating RAID design references, the Company will be in  a
position to provide RAID-capable system boards.

SALES AND MARKETING

    As  of  August 1,  1995, the  Company  employed 28  sales and  sales support
personnel who  devoted substantially  all their  time to  marketing, sales,  and
technical  and customer  support. The  Company plans  to increase  the number of
sales and marketing employees during 1995 to support its expanding customer base
and product lines.

    The Company sales and marketing plan is based on a two-tier strategy:  sales
to  OEMs of  servers and storage  subsystems, and sales  into alternate channels
that include distributors, system integrators and value added resellers.

  OEM SALES

    Sales to IBM accounted  for 22% of net  sales in 1994 and  31% of net  sales
during  the first six months  of 1995. Sales to  the next two largest customers,
DEC and HP, accounted for an additional 17% and 14%, respectively, of net  sales
in  1994 and  15% and 10%,  respectively, in the  first six months  of 1995. The
Company expects a limited number of customers and customer orders to continue to
account for  a substantial  portion  of the  Company's  revenue in  any  period.
Although  there are OEM  agreements in place  that define the  terms of sale and
support services with some of the Company's largest customers, these  agreements
do  not include specific  quantity commitments and  generally allow customers to
cancel any orders on 30 days notice.  The Company generally sells products on  a
purchase  order  basis. As  a result,  historical sales  are not  necessarily an
accurate indicator of future sales.

    During the second half of 1994 and  the first half of 1995, the Company  has
marketed  its  disk array  products to  several  additional OEMs,  including NEC
Japan, Siemens  Nixdorf, Storage  Dimensions,  Advanced Logic  Research,  Conner
Peripherals and Fujitsu, each of which accounted for more than $250,000 in sales
during the second quarter of 1995.

    Most  of  the  Company's  OEM  customers,  and  particularly  its  principal
customers,  have  extensive  product   development  experience  and   expertise,
substantial  financial  resources and  ongoing, substantial  product development
activities. Any of these OEM customers may choose to develop their own  products
which could be substituted for, and thus reduce or eliminate their purchases of,
the  Company's products.  Any material  reduction in  purchases of  a controller
product by any OEM customer will  materially and adversely affect the  Company's
business and operating results.

    The  OEM sales process is complex, requiring interaction with several layers
of the OEM  customer's organization and  extensive technical exchanges,  product
demonstrations and commercial

                                       27
<PAGE>
negotiations. As a result, the Company's typical sales cycle is typically 4 to 6
months.  OEM relationship commitments are generally  made at a high level within
the customer's organization, and the sales process involves broad  participation
across the Mylex organization, from the Chief Executive Officer to the engineers
who designed the product.

    Sales  to OEMs represented 69% of net sales during 1994 and 72% of net sales
in the first six months of 1995.

  ALTERNATE CHANNEL SALES

    The  Company's  alternate  channel  sales,  or  "ACS",  group  markets   and
distributes  the Company's products to system integrators, value added resellers
and commercial and industrial distributors (who also service major OEM customers
in some  international markets)  throughout the  world. The  ACS group  also  is
responsible  for sales to  OEM customers with  less than $150  million in annual
sales.  The   Mylex  ACS   group  also   uses  the   services  of   manufacturer
representatives  in the  United States  and Canada  and employees  at two remote
sales offices: one in the United  Kingdom for sales activity in western  Europe,
and one in Florida to serve an emerging Latin American market. Mylex administers
domestic  sales  and  sales to  eastern  Europe  and the  Pacific  Rim  from its
headquarters in Fremont, California.

    Mylex  has  distribution  agreements  with  both  commercial   distributors,
including  companies such as Tech Data, Merisel and Ingram Micro, and industrial
distributors, such as  Avnet Corporation  and Wyle Electronics.  Mylex also  has
agreements  with various regional and  specialty distributors, both domestic and
international.  The  Company  also  conducts  extensive  advertising  in   trade
publications, conducts various joint marketing activities with its distributors,
and sponsors exhibits at approximately 25 trade shows annually.

    Alternate  channel sales represented 31% of net sales during 1994 and 28% of
net sales in the first six months of 1995.

MANUFACTURING

    Mylex  organizes   its  manufacturing   as   a  continuous   flow   process.
Manufacturing  entails placing semiconductors and other electronic components on
printed circuit boards and soldering them in place through an automated process.
The Company  accomplishes  almost all  manufacturing  using Fuji  Surface  Mount
Technology  equipment. This equipment automatically positions and attaches chips
and other components to circuit boards, increasing the speed and accuracy of the
manufacturing process.

    The Company's manufacturing facility is  located at its Fremont,  California
headquarters.  The  Company  manufactures  approximately  60%  of  its  products
in-house. For  the remainder,  the Company  relies on  selected local  ISO  9000
certified  subcontract manufacturers.  Currently, the  Company uses  its outside
subcontractors for  high-volume production  activities, giving  the Company  the
flexibility   to  use   its  internal   production  capacity   for  new  product
introductions to allow Mylex to bring those  products to market at a rapid  pace
and  to meet unexpected short-term  production demands. Despite its arrangements
with local subcontractors, however, there can be no assurance that the Company's
manufacturing resources always will be adequate to meet product demand.

    Mylex performs  quality control  and  inspection procedures  throughout  the
production  process  to  ensure  that products  meet  industry  standards. Mylex
subjects all products, including those  manufactured by subcontractors, to  100%
in circuit and functional testing at Mylex's facility. To continue this process,
the  Company  will be  required to  expand its  in-house testing  facilities and
personnel.

SUPPLIERS AND COMPONENTS

    The Company's  most critical  components are  the i960  RISC processor,  the
Company's  applications specific integrated  circuits or "ASICs,"  the SCSI chip
and the DRAM SIMM  memory module. The Company  procures the i960 processor  from
Intel and its ASICs, SCSI chip and DRAM SIMM modules from Toshiba, Symbios Logic
and    FirstTech    Corporation,    respectively.   One    of    the   Company's

                                       28
<PAGE>
OEM customers  also provides  an ASIC  for inclusion  on its  custom product,  a
proprietary  chip  that  frequently is  in  short supply.  Other  components are
available from several sources at competitive prices.

    Currently, the  Company is  dealing with  worldwide shortages  of DRAM  SIMM
memory  modules and  surface mount  capacitors. DRAM  SIMM modules  are in heavy
demand throughout the personal computer  industry, and surface mount  capacitors
are  in  high demand  for use  in  the manufacture  of cellular  telephones. The
Company is attempting to develop  different design strategies which would  allow
it to avoid or reduce its dependence on components for which there is a shortage
and has increased its safety stock levels to cope with these shortages.

    The  Company has  no long-term supply  contracts. There can  be no assurance
that the Company will be able to  obtain, on a timely basis, all the  components
it  requires. If the Company cannot  obtain essential components as required, it
could be unable to meet demand for its products, thereby adversely affecting its
operating results. In addition, scarcity of such components could result in cost
increases and adversely affect the Company's gross margins.

    The Company's need  to manufacture products  before receiving firm  purchase
orders,  combined with risks  of technological obsolescence  and rapid shifts in
market demand, could result in inventory devaluation or obsolescence, either  of
which could have a material adverse effect on its operating results.

RESEARCH AND DEVELOPMENT

    The  Company  conducts  an  active  and  ongoing  research,  development and
engineering program that  focuses on  the development  of new  products and  new
features  for  the Company's  existing products.  The  Company has  expanded its
development  activities  and  has  added   an  additional  14  engineering   and
development employees through August 1, 1995. The Company has budgeted for seven
more technical employees for 1995.

    Products currently under development include new SCSI to SCSI controllers, a
controller  optimized for  multimedia and  video imaging,  controllers that will
provide for  high speed  serial interface  to disk  drives and  a low-cost  RAID
solution.  In  addition,  in  developing  the  next  generation  of  its current
products, the Company  will seek  to improve its  firmware and  software to  add
capabilities and performance based on marketplace needs.

    As  part of  its product  development strategy,  the Company  actively seeks
available, cooperative and codevelopment activities with industry leaders in the
hardware, software, silicon and system business. For example, the Company worked
on a cooperative  basis with Intel  to include  a RAID design  reference in  the
i960*RP  I/O  processor,  which  Intel  has  announced  for  delivery  in sample
quantities in the fourth quarter of 1995. The project, which was the culmination
of several months of cooperative work, makes it possible to implement RAID using
a processor residing on the computer system board. In June 1995, Mylex announced
that it will offer a  suite of RAID software and  firmware for use with the  new
i960*RP  I/O processors, starting delivery with Intel's initial shipments of the
processors.

    The Company's ability to compete successfully  will depend in large part  on
its  ability,  on a  timely and  cost-effective basis,  to enhance  its existing
products and introduce new  products with features  that meet changing  customer
requirements  and with competitive prices. Despite  testing, new products may be
affected by  quality, reliability  and  interoperability problems,  which  could
result  in returns, delays in collecting accounts receivable, unexpected service
or warranty expenses, reduced orders and a decline in the Company's  competitive
position.

    As  of  August 1,  1995, the  Company  had 39  employees engaged  in product
development.

                                       29
<PAGE>
COMPETITION

    The markets for the Company's RAID controller products have been competitive
and are  likely to  become  more competitive.  Furthermore, there  are  numerous
companies  with established reputations in  the controller and personal computer
related markets,  many  of  which  have  greater  financial,  manufacturing  and
marketing resources than those of the Company.

    The  Company believes that  its competitors include  Adaptec, which recently
introduced a PCI  bus based disk  array controller and  which has  significantly
greater  financial,  manufacturing  and marketing  resources  than  the Company.
Unlike the Company's products, the Adaptec product does not include a  processor
on  the disk array board, but instead relies on the microprocessor on the system
board to accomplish the RAID function.

    Some  OEMs  (such  as  Compaq  and  Dell)  have  developed  their  own  RAID
controllers.  As  noted,  the  customers historically  accounting  for  the most
significant volumes of the  Company's sales are major  OEMs, any of which  could
develop  their own  controllers at any  time rather than  purchase such products
from the Company.

    The Company's  ability  to  compete  successfully  in  either  the  personal
computer  networking  market  or the  RAID  controller market  depends  upon its
ability to continue to develop products that obtain market acceptance, which can
be sold at competitive prices,  while maintaining adequate gross margin  levels,
and which are proven to be reliable. Although the Company believes that its RAID
controller  products  have  certain  competitive  advantages,  there  can  be no
assurance that the Company will be able to compete successfully in the future in
the market for such  products or that other  companies may not develop  products
with greater performance or more favorable prices and thus reduce the demand for
the Company's products. Furthermore, as more companies enter the RAID controller
market,  the Company  expects to encounter  price competition  for such products
which could materially and adversely affect its gross margins.

INTELLECTUAL PROPERTY

    The Company does not hold any patents applicable to its RAID controllers and
relies on  a combination  of  trade secret,  copyright  and trademark  laws  and
employee  and third party non-disclosure  agreements to protect its intellectual
property. There can  be no  assurance that  the steps  taken by  the Company  to
protect its rights will be adequate to prevent misappropriation of the Company's
technology  or to  preclude competitors  from developing  products with features
similar to the Company's products.

    Certain patents and copyrights owned by others are of critical importance to
the high technology  electronic product  industry segment in  which the  Company
operates.  The Company has obtained licenses  to certain technology protected by
patents and copyrights which the Company believes are adequate for the operation
of its  business as  presently conducted.  It is  likely that  such licenses  to
produce,  use and market new  technologies will continue to  be important to the
Company. In the  future, the  Company may be  required to  obtain licenses  from
others,  and there are  no assurances that  such licenses would  be available on
terms satisfactory to the Company.

    There can be no assurance that third parties will not assert infringement or
related indemnity claims against the Company. Asserting the Company's rights  or
defending  against third  party claims  could involve  substantial expense, thus
materially and adversely affecting the Company's results of operations.

LITIGATION

    The Company and American Megatrends, Inc. ("AMI") entered into an  agreement
on  February 15, 1987, under which AMI licensed to the Company the rights to use
a  basic  input/output  system  and  certain  other  technical  information   in
consideration  for  the payment  of  royalties. On  May  5, 1992,  AMI initiated
arbitration proceedings before  the American Arbitration  Association in  Miami,
Florida,  asserting a right under the agreement to audit the Company's books and
records for the  purpose of  calculating royalties.  The Company  counterclaimed
against AMI for breach of contract, failure to pay

                                       30
<PAGE>
a  written account, failure to pay for  goods sold and delivered, and failure to
provide required information. The arbitration includes claims and  counterclaims
asserted in a suit filed against the Company on September 3, 1993, in the United
States  District Court in Atlanta, Georgia, and then dismissed without prejudice
in February 1995, pursuant to a stipulation between the parties. The parties are
presently involved  in preliminary  conferences and  discovery, and  evidentiary
hearings  are scheduled for  late October and early  November, 1995. The Company
believes it has  numerous defenses to  AMI's claims and  intends to continue  to
vigorously  defend  the arbitration.  But  there can  be  no assurance  that the
Company will ultimately prevail.  An unfavorable outcome  could have an  adverse
effect  on  the  Company's  business  and  results  of  operations.  Neither the
agreement nor the arbitration concerns any technology used in any Mylex products
manufactured after 1992.

    In October 1994, the former Chief Executive Officer of the Company, Dr. M.A.
Chowdry, filed  a  complaint against  the  Company and  its  outside  directors,
claiming breach of an employment agreement that he entered into with the Company
approximately  three  months prior  to his  termination  as the  Company's Chief
Executive Officer. The complaint alleges compensatory and consequential  damages
of  over $6 million (which would vary based on the price of the Company's Common
Stock) and unspecified punitive damages. The Company believes it has meritorious
defenses and  will  vigorously  defend  this  lawsuit.  Nonetheless,  given  the
unpredictable  nature of legal  proceedings, there can be  no assurance that the
Company will prevail.

    The Company has incurred and expects to continue to incur substantial  legal
expenses  in defending against the AMI arbitration and Dr. Chowdry's suit. Those
expenses may fluctuate from quarter to quarter and are likely to increase.

    Although there can  be no  assurance given with  respect to  the results  of
legal  proceedings, based on information currently  available to the Company, it
believes that  it  does not  have  potential  liability with  respect  to  these
proceedings that would have a material adverse effect on the Company.

    In  addition to matters discussed  above, the Company is  a party to routine
suits and  claims arising  in the  ordinary  course of  its business  which  the
Company does not believe will have a material adverse effect on its business.

EMPLOYEES

    As  of  August  1, 1995,  the  Company  employed 155  people.  The Company's
employees include 39 engineering and  product development employees, 21  finance
and administration employees, 28 employees in the sales, marketing and technical
and customer support areas, and 67 manufacturing employees.

    Recruitment of personnel in the computer industry is highly competitive. The
Company  believes that its future success will  depend in part on its ability to
attract and  retain highly  skilled management,  sales, marketing,  finance  and
technical  personnel.  There can  be no  assurance of  the Company's  ability to
recruit the employees that it may need.

PROPERTIES

    On April  1,  1991,  the  Company moved  to  its  current  headquarters  and
manufacturing  facility, located  in a 73,887  square foot  facility in Fremont,
California. The Company's lease on this facility extends through March 31, 1996,
and the Company has an option to renew the lease for an additional five years at
a rent equal to 95% of prevailing market rentals.

                                       31
<PAGE>
                                   MANAGEMENT

    The  following table sets forth information regarding the executive officers
and all directors of the Company:

<TABLE>
<CAPTION>
                 NAME                       AGE                           OFFICE/POSITION
--------------------------------------  -----------  ----------------------------------------------------------
<S>                                     <C>          <C>
Al Montross                                     58   President and Chief Executive Officer; Director
Parveen Gupta                                   47   Senior Vice President and General Manager, Disk Array
                                                      Division
Colleen M. Gray                                 42   Vice President Finance and Chief Financial Officer
Peter Shambora                                  51   Vice President Sales and Marketing
Sherman W. Tom                                  40   Vice President Operations
Krishnakumar Rao Surugucchi                     39   Vice President of Engineering
Joseph A. Schmidt                               51   Vice President, Human Resources
Ismael Dudhia                                   60   Chairman of the Board
M. Yaqub Mirza                                  48   Director and Secretary
Inder M. Singh                                  48   Director
Richard Love                                    61   Director and Treasurer
Stephen McKensie                                65   Director
</TABLE>

  AL MONTROSS

    Mr. Montross  was appointed  President and  Chief Executive  Officer of  the
Company  in April 1994 and became a Director in May 1994. In September 1993, Mr.
Montross joined the Company as Executive Vice President and in December 1993 was
appointed Acting  President and  Chief Operating  Officer. From  August 1992  to
September  1993, he  held the position  of Senior Vice  President at Distributed
Processing Technology, a computer peripherals  manufacturer. From 1989 to  1992,
Mr.  Montross  held the  position of  President and  Chief Operating  Officer at
Inacomp Computer Centers, Inc.,  a computer equipment  and network reseller.  He
currently  serves as  a director of  American Speedy Printing  Centers, Inc. Mr.
Montross holds a bachelor's degree in Economics from Siena College in New York.

  PARVEEN GUPTA

    Dr. Gupta joined the Company in  January 1990 as Vice President, OEM  Sales.
In  April  1993, he  was named  Vice  President and  General Manger,  Disk Array
Division. In  September 1993,  he  was promoted  to  Senior Vice  President  and
General  Manager,  Disk Array  Division. From  May 1989  until January  1990, he
served as a general manager for HCL Limited, a computer manufacturer. From March
1988 through April 1989,  he was Sales Manager  and Technical Marketing  Manager
for   Zilog  Incorporated,  responsible  for  its  microprocessor  and  computer
peripheral  products.  From  1973  to  1988,  he  held  various  marketing   and
engineering positions with Visual Information Technologies, United Technologies,
Mostek  Division,  and  Astronautics  Corporation  of  America.  He  received  a
doctorate in Electrical Engineering from the University of Wisconsin.

  COLLEEN M. GRAY

    Ms. Gray joined the Company in April 1992 as Controller and in December 1993
she was  appointed Chief  Financial Officer.  She was  appointed Vice  President
Finance  in December 1994. From  November 1989 until August  1991, she served as
Controller  of  Voicemail  International,  Inc.,  a  voice  messaging  equipment
manufacturer.  From March 1987  through June 1989,  she was Assistant Controller
for Alcatel Business  Systems, Inc.  From 1978  to 1987,  she held  a series  of
financial management positions with ITT Courier Terminal Systems. She received a
bachelor of science degree in Accounting from Arizona State University.

                                       32
<PAGE>
  PETER SHAMBORA

    Mr.  Shambora joined  Mylex in  October 1993,  as Vice  President, Sales and
Marketing. From February  1992 to  October 1993,  he served  as Vice  President,
Sales and Marketing of Mass Microsystems, a storage subsystem manufacturer. From
January  1987 to February 1992, he served  as Vice President, Worldwide Sales of
Storage Dimensions, a storage subsystem manufacturer. Before 1987, Mr.  Shambora
held  sales or  marketing positions  at various  technology companies, including
Atasi, Four Phase  Systems and  Ampex. Mr. Shambora  received his  undergraduate
degree  from San Jose  State University in Industrial  Management and a master's
degree from the University of Southern California in Systems Management.

  SHERMAN W. TOM

    Mr.  Tom  joined  the  Company  in  February  1994,  as  Vice  President  of
Operations.  From October 1988 until  July 1993, he served  as Vice President of
Operations for Ultra  Network Technologies, a  manufacturer of high  performance
network  products and  services. From December  1984 until August  1988, he held
positions of  Director, Manufacturing  Technology  & Engineering  Services,  and
Director,  Subsystems  Manufacturing  Group, for  Silicon  Graphics.  Before his
employment with Silicon  Graphics, from 1976  to 1984, Mr.  Tom was involved  in
senior  management  and technical  positions  in emerging  technology companies,
including six years with  Gould Inc., Biomation Division.  He attended San  Jose
State University, where he studied business and industrial technology.

  KRISHNAKUMAR RAO SURUGUCCHI

    Mr.  Surugucchi joined the Company in February 1992, as Director of Hardware
Engineering. He was  promoted to  Vice President  of Engineering  in July  1994.
Before  joining the Company, Mr. Surugucchi  was Director of Engineering for the
Company's former subsidiary,  Mylex, India,  from April 1991  to February  1992.
Before  that,  Mr. Surugucchi  was  Deputy General  Manager  for PSI,  India, an
engineering consulting firm, from  November 1979 to  March 1991. Mr.  Surugucchi
received  his undergraduate degree and master's degree in Electrical Engineering
from The Indian Institute of Technology, Bombay, India.

  JOSEPH A. SCHMIDT

    Mr. Schmidt joined the  Company in March 1995  as its Vice President,  Human
Resources.  Prior  to  joining  the  Company, he  served  as  Director  of Human
Resources of Centex  Telemanagement, a  telecommunications outsourcing  company,
from  January 1994 to March 1995, and  Associate Director of Human Resources for
Z.D. Exposition and Conference Company, a  company in the trade show  management
business,  from  May 1993  to December  1993.  Mr. Schmidt  also served  as Vice
President-- Human  Resources  of  Powerup  Software  Corp,  a  utility  software
developer,  from January 1991  to May 1993,  and as Director  of Corporate Human
Resources Planning for Diasonics, Inc.,  a medical equipment manufacturer,  from
May  1986 through December  1990. Before May  1986, Mr. Schmidt  served in human
resources positions with a variety of companies. Mr. Schmidt holds a  bachelor's
degree  from the University of Waterloo,  Ontario, Canada, and a master's degree
in Human  Resources and  Manpower Development  from the  New School  for  Social
Research, New York, New York.

  ISMAEL DUDHIA

    Mr.  Dudhia was elected  a Director of  the Company in  July 1991 and became
Chairman in December 1993. From 1983 until October 1991, Mr. Dudhia was Chairman
of the Board and active  in the management of  Coolidge Bank and Trust  Company,
which Mr. Dudhia owned from 1986 until 1991. In 1991, principally as a result of
the  local and  national recession and  significant declines in  the real estate
market in the Boston,  Massachusetts area, Coolidge  was declared insolvent  and
its  assets were  sold by the  Federal Deposit Insurance  Corporation to another
bank. Mr. Dudhia  received a degree  of Barrister-at-Law from  Lincolns Inn,  an
educational  institution in  England. From November  1993 until  April 1994, Mr.
Dudhia served as a director and Chairman of Northgate Computer Systems, Inc.,  a
Minnesota  based computer company ("Northgate").  See "Certain Relationships and
Related Transactions."

                                       33
<PAGE>
  M. YAQUB MIRZA

    Dr. Mirza has served as a Director of the Company since December 1988 and as
Secretary since February  1989. He  is currently President  and Chief  Executive
Officer  of Mar-Jac Investments,  Inc., an investment  and management consulting
firm that is one of the Company's shareholders. See "Principal Shareholders." He
currently serves as a Trustee  and Treasurer on the  Board of Trustees of  Amana
Mutual  Funds Trust, a  mutual fund. He is  also Chairman of  the Board of Jugos
Concetrados, S.A. which is traded on the Santiago, Chile Stock Exchange. He also
serves as an officer of Safa Trust. Dr. Mirza holds a doctorate in Physics  from
the  University of Texas. From July 1992 until April 1994, Dr. Mirza served as a
member of the Board  of Directors of Northgate.  See "Certain Relationships  and
Related Transactions."

  INDER M. SINGH

    Dr.  Singh has served as  a Director of the  Company since December 1986 and
served as the  Company's Treasurer from  February 1989 to  November 1989.  Since
March  1988, Dr. Singh has been the  President of Lynx Real-Time System, Inc., a
software company. From April 1985 to March  1988, he was the owner and  operator
of Simran Associates, a computer consulting firm. From March 1982 to March 1985,
he  served as President of Excelan, Inc. Before forming Excelan, Inc., Dr. Singh
held executive level positions with  Zilog Incorporated and Amdahl  Corporation.
Dr. Singh holds a doctorate in Electrical Engineering from Yale University.

  RICHARD LOVE

    Mr.  Love has served as  a Director of the Company  since July 1993, and was
appointed Treasurer in January  1995. Mr. Love is  currently a principal of  RJL
Capital Management of Santa Barbara, an investment management firm. From 1973 to
1988,  Mr. Love  served as  an investment  counselor, then  senior partner, with
Loomis, Sayles & Co. Before joining Loomis, Sayles & Co., Mr. Love held  various
positions  with James Capel Investment Banking from 1969 to 1973 and with Stein,
Roe & Farnham from 1959 to 1969. Mr. Love attended the Lawrenceville School  and
received   a  bachelor's  degree  in   Metallurgical  Engineering  from  Cornell
University. He is  an ICAA  Chartered Investment  Counselor. From  July 1992  to
September  1993,  Mr. Love  served  as a  member of  the  Board of  Directors of
Northgate. See "Certain Relationships and Related Transactions."

  STEPHEN MCKENSIE

    Mr. McKensie  was appointed  a Director  in January  1995. Mr.  McKensie  is
currently Chief Executive Officer of Resource Management, a receivable financing
company.  From December 1989  to January 1991,  he was Senior  Vice President of
Sales and Marketing and cofounder of Reply Corporation, a manufacturer of  Micro
Channel  personal computers. From February 1987  to September 1989, Mr. McKensie
was President of Acer America, Inc. He  currently serves as the Chairman of  the
Board  of  Microspeed Corporation,  a  manufacturer of  personal  computer input
devices. Mr. McKensie holds  a bachelor's degree in  Political Science from  the
University of Nebraska.

                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

    In  July  1992,  a  group  of investors  purchased  a  majority  interest in
Northgate Computer Systems, Inc. ("Northgate"). As a result of this transaction,
two current directors,  Dr. Mirza and  Mr. Love, were  appointed to  Northgate's
Board  of Directors  in July 1992.  One former  director of the  Company, Dr. M.
Akram Chowdry, was appointed to the Northgate Board in September 1992 and  later
became  Chairman.  Mr. Dudhia  was appointed  Chairman  of Northgate's  Board in
November 1993. Mr.  Love resigned from  the Northgate Board  in September  1992,
shortly  after election  to the Company's  Board. Dr. Chowdry  resigned from the
Northgate Board in August 1993 and Dr.  Mirza and Mr. Dudhia each resigned  from
the  Northgate  Board in  April  1994. The  Company  has no  equity  interest in
Northgate. However, the Company did  have an ongoing business relationship  with
Northgate pursuant to which Northgate had purchased products from the Company at
prices  established  by the  Company for  other third  party purchasers  who buy
similar quantities of products. During 1992 and the first seven months of  1993,
the  Company provided commercial credit to Northgate for such purchases. For the

                                       34
<PAGE>
year ended December 31, 1994, sales to Northgate totaled $64,866 and the Company
made no  sales to  Northgate  after May,  1994. In  late  1994, certain  of  the
creditors  of  Northgate, including  the  Company, filed  a  bankruptcy petition
against Northgate, seeking its liquidation under the provisions of Chapter 7  of
the  Federal  Bankruptcy  Act.  Subsequently,  the  filing  was  converted  to a
reorganization under Chapter 11 of the Act. After the filing, the Company  wrote
off  approximately  $4,600,000, representing  substantially  all of  its account
receivable from Northgate. The Company had fully reserved the receivable  during
1993 due to the deterioration of Northgate's financial condition.

    The  Company, in 1994, utilized  the services of Saicom,  a company owned by
the wife  of  Dr.  Parveen  Gupta,  an officer  of  the  Company,  for  software
duplication  and printing  of product  manuals. The  Company determined,  at the
time, that Saicom's  prices, for  comparable quantities,  were competitive  with
other  providers of such services. All transactions were completed in the normal
course of business and  the Company paid $101,717  for Saicom services in  1994.
The Company ceased using Saicom's services in 1994.

    The  Company  and Mr.  Montross, the  Company's  President, entered  into an
employment agreement, dated  January 1, 1995.  The agreement will  extend for  a
term of four years. The basic terms provide for an annual salary of $250,000 and
a  bonus based upon the Company's profitability. The terms also provide that Mr.
Montross be  granted options  to purchase  shares of  Common Stock  as  follows:
130,000  shares in  January 1995;  130,000 shares  in January  1996; and 110,000
shares in  January 1997.  Pursuant to  the Agreement,  Mr. Montross  was paid  a
special  bonus  of $75,000  in  recognition of  his  prior contributions  to the
Company.

                        SHARES ELIGIBLE FOR FUTURE SALE

    Upon the  completion of  this offering,  the Company  will have  outstanding
approximately  16,830,000  shares  of  Common  Stock,  virtually  all  of which,
including the 2,000,000 shares (assuming  that the Underwriters do not  exercise
their  over-allotment option)  sold in this  offering, will  be freely tradeable
without restriction or further  registration under the  Securities Act. In  June
1995,  the  Company  registered  912,081 shares  of  Common  Stock,  issued upon
conversion of  its convertible  debentures  and the  exercise of  warrants,  for
resale  by holders  of those  shares. The  Company believes  that most  of these
shares have not, as  yet, been sold.  In addition, the  Company has reserved  an
aggregate  of  2,407,000 shares  of Common  Stock for  issuance under  its stock
option plans,  virtually  all of  which  will  be freely  tradeable  upon  their
issuance.  Of  those shares,  563,000  were subject,  as  of June  30,  1995, to
presently exerciseable options.

    The directors and  executive officers  of the  Company have  agreed, at  the
request of the Underwriters, not to sell or otherwise dispose of Common Stock in
the  public market  for 90 days  after the  date of this  Prospectus without the
prior written consent of the  Underwriters' Representative. Upon the  expiration
of  these "lock-up"  agreements, such  persons will  have the  right to  sell an
aggregate of  1,389,061 shares,  including  shares subject  to options,  in  the
public market.

                                       35
<PAGE>
                             PRINCIPAL SHAREHOLDERS

    The  following table sets forth certain information regarding the beneficial
ownership of  the  Company's Common  Share  by  (i) each  director  and  certain
officers  of  the Company;  (ii)  all directors  and  executive officers  of the
Company as a group; and (iii) each person known by the Company to own more  than
five  percent of the Company's Common  Stock. The table presents the information
both as of August  1, 1995, and as  adjusted to reflect the  sale of the  shares
offered by this Prospectus.

<TABLE>
<CAPTION>
                                                            PERCENTAGE OF SHARES
                                    SHARES BENEFICALLY       BENEFICALLY OWNED
                                           OWNED         --------------------------
                                    -------------------   PRIOR TO        AFTER
               NAME                                       OFFERING    OFFERING (1)
----------------------------------                       -----------  -------------
<S>                                 <C>                  <C>          <C>
Al Montross.......................          102,500(2)            *             *
Parveen Gupta.....................          190,000(3)          1.2%          1.1%
Colleen M. Gray...................           25,000(3)            *             *
Peter Shambora....................            8,500(3)            *             *
Sherman W. Tom....................           17,250(4)            *             *
Ismael Dudhia.....................           82,491(5)            *             *
M. Yaqub Mirza....................          864,251(6)          5.6%          5.0%
Inder M. Singh....................          259,991(7)          1.7%          1.5%
Richard Love......................          395,003(8)          2.6%          2.3%
Stephen McKensie..................           12,501(3)            *             *
                                          2,022,487(9)         13.1%         11.6%
All directors and executive
 officers as a group
 (12 persons).....................
</TABLE>

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

*   Less than one percent.

(1) Assumes no exercise of the Underwriters' over-allotment option.

(2) Includes  92,500  shares of  Common  Stock subject  to  options that  may be
    exercised on  or before  October 16,  1995. Does  not include  an option  to
    purchase  130,000 shares granted in January 1995 under Mr. Montross' January
    1, 1995  employment agreement  with the  Company or  a further  130,000  and
    110,000 share option grant that Mr. Montross has the right to receive, under
    the agreement, in January 1996 and January 1997, respectively.

(3) All  of  these  shares of  Common  Stock  are subject  to  options  that are
    exercisable on or before October 16, 1995.

(4) Includes  16,250  shares  of  Common  Stock  subject  to  options  that  are
    exercisable on or before October 16, 1995.

(5) Includes  72,491  shares  of  Common  Stock  subject  to  options  that  are
    exercisable on or before October 16, 1995.

(6) Includes  87,492  shares  of  Common  Stock  subject  to  options  that  are
    exercisable on or before October 16, 1995. Also includes 276,759 shares held
    in  the name of  Safa Trust and 375,000  shares held in the  name of Mar Jac
    Investments, Inc. Dr. Mirza  is an officer of  Safa Trust and the  president
    and  a  director  of Mar  Jac.  As a  result,  Dr.  Mirza may  be  deemed to
    beneficially own all  shares held by  Safa Trust and  Mar Jac. However,  Dr.
    Mirza disclaims ownership of all such shares.

(7) Includes  22,491  shares  of  Common  Stock  subject  to  options  that  are
    exercisable on or before October 16, 1995.

(8) Includes  37,503  shares  of  Common  Stock  subject  to  options  that  are
    exercisable on or before October 16, 1995.

(9) Includes  629,728  shares  of  Common  Stock  subject  to  options  that are
    exercisable on or before  October 16, 1995, 276,759  shares of Common  Stock
    held  in the name of Safa Trust, and  375,000 shares of Common Stock held in
    the name of Mar Jac Investments, Inc.

                                       36
<PAGE>
                                  UNDERWRITING

    Under the terms and subject to the conditions of the Underwriting Agreement,
the Underwriters named  below, for  whom Needham &  Company, Inc.  is acting  as
representative  (the "Representative"),  have severally agreed  to purchase from
the Company,  and  the Company  has  agreed to  sell  to each  Underwriter,  the
aggregate  number of shares of Common  Stock set forth opposite their respective
names  in  the  table  below.  The  Underwriting  Agreement  provides  that  the
obligations  of the Underwriters to pay for and accept delivery of the shares of
Common  Stock  are  subject  to  certain  conditions  precedent,  and  that  the
Underwriters  are committed to purchase and pay for all shares if any shares are
purchased.

<TABLE>
<CAPTION>
                                                                          NUMBER
                                                                            OF
NAME                                                                      SHARES
---------------------------------------------------------------------  -------------
<S>                                                                    <C>
Needham & Company, Inc...............................................        980,000
Bear, Stearns & Co. Inc..............................................         70,000
A.G. Edwards & Sons, Inc.............................................         70,000
Hambrecht & Quist LLC................................................         70,000
Lehman Brothers......................................................         70,000
Merrill Lynch & Co...................................................         70,000
Montgomery Securities................................................         70,000
Morgan Stanley & Co. Incorporated....................................         70,000
Prudential Securities Incorporated...................................         70,000
Robertson, Stephens & Company, L.P...................................         70,000
Brean Murray, Foster Securities Inc..................................         30,000
The Chicago Corporation..............................................         30,000
Cowen & Company......................................................         30,000
Crowell, Weedon & Co.................................................         30,000
Cruttenden Roth Incorporated.........................................         30,000
First Albany Corporation.............................................         30,000
Pacific Growth Equities, Inc.........................................         30,000
Raymond James & Associates, Inc......................................         30,000
Rodman & Renshaw, Inc................................................         30,000
SoundView Financial Group, Inc.......................................         30,000
Unterberg Harris.....................................................         30,000
Van Kasper & Company.................................................         30,000
Wessels, Arnold & Henderson..........................................         30,000
                                                                       -------------
      Total..........................................................      2,000,000
                                                                       -------------
                                                                       -------------
</TABLE>

    The Company has  been advised  by the Representative  that the  Underwriters
propose  to offer the shares of Common Stock to the public at the offering price
set forth on the cover page of  this Prospectus and to certain dealers (who  may
include  the Underwriters) at such price less a concession not in excess of $.50
per share.  The  Underwriters  may  allow,  and  such  dealers  may  reallow,  a
concession  to certain other  dealers (who may include  the Underwriters) not in
excess of $.10 per share. After the  offering to the public, the offering  price
and other selling terms may be changed by the Representative.

                                       37
<PAGE>
    The  Company has granted  an option to  the Underwriters, exercisable during
the 30-day period after the date of this Prospectus, to purchase up to a maximum
of 300,000 shares of Common Stock at  the public offering price per share,  less
the  underwriting discounts and commissions, set forth on the cover page of this
Prospectus.  The  Underwriters   may  exercise   such  option   only  to   cover
over-allotments  made in  connection with the  sale of the  Common Stock offered
hereby. To  the  extent the  Underwriters  exercise  such option,  each  of  the
Underwriters  will  be committed,  subject  to certain  conditions,  to purchase
approximately the same  percentage of such  additional shares as  the number  of
shares  of Common  Stock to be  purchased by  such Underwriter, as  shown in the
above table, bears to the total shown.

    In connection with this  offering, certain of  the Underwriters and  selling
group  members may engage  in passive market marking  transactions in the Common
Stock of the  Company in  the Nasdaq National  Market immediately  prior to  the
commencement of sales in this offering, in accordance with Rule 10b-6A under the
Exchange  Act. Passive market  making consists of displaying  bids in the Nasdaq
National Market which are limited by the bid prices of independent market makers
and making purchases limited  by such prices and  effected in response to  order
flow.  Net purchases by a passive market maker on each day are generally limited
to a specified percentage  of the passive market  maker's average daily  trading
volume in the Company's Common Stock during a specified prior period and must be
discontinued when such limit is reached. Passive market making may stabilize the
market  price of  the Common Stock  of the Company  at a level  above that which
might  otherwise  prevail  in  the  open  market  and,  if  commenced,  may   be
discontinued at any time.

    In  the  Underwriting Agreement,  the Company  has  agreed to  indemnify the
Underwriters against certain liabilities that may be incurred in connection with
this offering, including liabilities under the Securities Act, or to  contribute
payments that the Underwriters may be required to make in respect thereof.

    The  Representative has  advised the  Company that  the Underwriters  do not
intend to confirm sales to any  accounts over which they exercise  discretionary
authority.

    The  Company  and its  directors and  executive  officers have  agreed that,
without the prior written consent of the Representative, they will not  directly
or  indirectly offer  to sell,  sell, or otherwise  dispose of  shares of Common
Stock or any securities convertible or exchangeable therefor, for a period of 90
days after the date of this Prospectus, subject to certain limited exceptions.

                                 LEGAL MATTERS

    The validity of the shares of  Common Stock offered by this Prospectus  will
be  passed upon  for the  Company by  Brown &  Bain, Palo  Alto, California, and
certain matters will be  passed upon for  the underwriters by  Gray Cary Ware  &
Freidenrich, Palo Alto, California.

                                    EXPERTS

    The  annual  consolidated financial  statements,  and the  related financial
statement schedule,  of Mylex  included and  incorporated by  reference in  this
Prospectus  have been audited by KPMG Peat Marwick LLP, independent auditors, as
stated in their  reports, which are  included and incorporated  by reference  in
this  Prospectus.  Such  financial  statements  and  schedule  are  included and
incorporated herein in reliance upon the  reports of such firm given upon  their
authority as experts in accounting and auditing.

                                       38
<PAGE>
                             ADDITIONAL INFORMATION

    The  Company has filed with the  Commission a Registration Statement on Form
S-3 (together  with all  amendments  and exhibits,  referred  to herein  as  the
"Registration  Statement") under  the Securities  Act of  1933, as  amended (the
"Securities Act")  with  respect  to  the  shares  being  offered  hereby.  This
Prospectus  does not contain  all the information set  forth in the Registration
Statement, certain parts of which are  omitted in accordance with the rules  and
regulations of the Commission. For further information, reference is hereby made
to  the Registration Statement, which may be obtained from the Commission at its
principal office in Washington, D.C. upon  payment of the charges prescribed  by
the  Commission.  Statements contained  in this  Prospectus  or in  any document
incorporated herein by reference as to the contents of any contract or  document
referred to herein or therein are not necessarily complete, and in each instance
reference  is made to the copy of such  contract or document filed as an exhibit
to the Registration Statement or such other document, each such statement  being
qualified in all respects by such reference.

                             AVAILABLE INFORMATION

    The  Company is subject to the  informational requirements of the Securities
Exchange Act  of  1934, as  amended  (the "Exchange  Act"),  and the  rules  and
regulations  promulgated thereunder. In accordance  therewith, the Company files
periodic reports, proxy  and information statements  and other information  with
the  Securities and Exchange Commission  (the "Commission"). Such reports, proxy
and information statements  and other information  filed by the  Company can  be
inspected  and  copied  at the  public  reference facilities  maintained  by the
Commission at Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549, as well
as at  the following  regional  offices of  the  Commission: New  York  Regional
Office,  Seven World Trade Center, New York, New York 10048 and Chicago Regional
Office, Citicorp Center, 500 West Madison Street, Suite 1400, Chicago,  Illinois
60621-2511.  Copies of such  material can be obtained  from the Public Reference
Section of the Commission,  450 Fifth Street, N.W.,  Washington, D.C. 20549,  at
prescribed  rates. The  Common Stock  is quoted  on the  Nasdaq National Market.
Reports, proxy and information statements  and other information statements  and
other  information described above  may be inspected and  copied at the National
Association of Securities Dealers, Inc.,  1735 K Street, N.W., Washington,  D.C.
20006.

                                       39
<PAGE>
                     INFORMATION INCORPORATED BY REFERENCE

    The following documents filed with the Commission are incorporated into this
Prospectus by reference:

    (1) The Company's Annual Report on Form 10-K for the year ended December 31,
       1994, as amended;

    (2)  The Company's  Quarterly Report  on Forms  10-Q for  the quarters ended
       March 31 and June 30, 1995;

    (3) The Company's  Proxy Statement  for its Annual  Meeting of  Shareholders
       held on April 24, 1995;

    (4)  The description  of the  Company's Common  Stock contained  in Form 8-A
       declared effective April 12, 1985; and

    (5) All  other  reports and  other  documents  filed by  the  Company  since
       December  31, 1994,  pursuant to Section  13(a) or 15(d)  of the Exchange
       Act.

    All documents  filed  by the  Company  after  the date  of  this  Prospectus
pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, prior to the
termination  of the offering, shall be deemed to be incorporated by reference in
this Prospectus  and to  be  a part  hereof  from the  date  of filing  of  such
documents.  Any statement contained  in a document incorporated  or deemed to be
incorporated by reference herein  shall be deemed to  be modified or  superseded
for  purposes of this Prospectus to the extent that a statement contained herein
or in any other  subsequently filed document  which also is or  is deemed to  be
incorporated by reference herein modifies or supersedes such statement. Any such
statement  so modified or superseded shall not  be deemed, except as so modified
or superseded, to constitute a part of this Prospectus.

    The Company  will  provide without  charge  to each  person,  including  any
beneficial  owner of any of the Common Stock,  to whom a copy of this Prospectus
has been delivered, upon the written or  oral request of such person, a copy  of
any  and  all of  the documents  referred to  above  which have  been or  may be
incorporated by  reference in  this  Prospectus, except  that exhibits  to  such
documents  shall not  be provided unless  they are  specifically incorporated by
reference into such documents. Requests for  such copies of any document  should
be   directed  to:  Mylex  Corporation,   34551  Ardenwood  Boulevard,  Fremont,
California 94555, Attention: Chief Financial Officer, telephone: (510) 796-6100.

                                       40
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
                       CONSOLIDATED FINANCIAL STATEMENTS
                        AND FINANCIAL STATEMENT SCHEDULE
                                     INDEX

<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
Independent Auditors' Report...............................................................................        F-2

Consolidated Financial Statements:
  Balance Sheets as of December 31, 1993 and 1994, and
    June 30, 1995 (Unaudited)..............................................................................        F-3

  Statements of Operations,
    Years Ended December 31, 1992, 1993, and 1994, and Six Months
     Ended June 30, 1994 and 1995 (Unaudited)..............................................................        F-4

  Statements of Stockholders' Equity,
    Years Ended December 31, 1992, 1993, and 1994, and Six Months
     Ended June 30, 1995 (Unaudited).......................................................................        F-5

  Statements of Cash Flows,
    Years Ended December 31, 1992, 1993, and 1994, and Six Months
     Ended June 30, 1994 and 1995 (Unaudited)..............................................................        F-6

Notes to Consolidated Financial Statements.................................................................        F-7
</TABLE>

                                      F-1
<PAGE>
                          INDEPENDENT AUDITORS' REPORT

The Board of Directors and Stockholders
 Mylex Corporation:

    We  have  audited  the  accompanying consolidated  balance  sheets  of Mylex
Corporation and subsidiary  as of December  31, 1994 and  1993, and the  related
consolidated  statements of operations, stockholders' equity, and cash flows for
each of  the years  in the  three-year  period ended  December 31,  1994.  These
consolidated  financial  statements  are  the  responsibility  of  the Company's
management. Our responsibility is  to express an  opinion on these  consolidated
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  consolidated financial  statements referred  to above
present fairly,  in  all material  respects,  the financial  position  of  Mylex
Corporation  and subsidiary as of December 31, 1994 and 1993, and the results of
their operations and their cash  flows for each of  the years in the  three-year
period ended December 31, 1994, in conformity with generally accepted accounting
principles.

                                              KPMG PEAT MARWICK LLP

San Jose, California
January 30, 1995

                                      F-2
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
                          CONSOLIDATED BALANCE SHEETS
                       (IN THOUSANDS, EXCEPT SHARE DATA)
                                     ASSETS

<TABLE>
<CAPTION>
                                                                                   DECEMBER 31,
                                                                               --------------------
                                                                                 1993       1994
                                                                               ---------  ---------   JUNE 30,
                                                                                                        1995
                                                                                                     -----------
                                                                                                     (UNAUDITED)
<S>                                                                            <C>        <C>        <C>
Current assets:
  Cash and equivalents.......................................................  $   3,253  $   3,866   $   2,242
  Accounts receivable, including trade accounts receivable from affiliate of
   $4,633 in 1993............................................................      9,424     11,321      15,623
  Allowance for doubtful accounts............................................     (5,403)      (532)       (509)
                                                                               ---------  ---------  -----------
    Net accounts receivable..................................................      4,021     10,789      15,114
  Inventories................................................................      4,631     10,237      18,868
  Prepaid expenses and other current assets..................................        622        775       1,114
                                                                               ---------  ---------  -----------
    Total current assets.....................................................     12,527     25,667      37,338
Property and equipment, net..................................................      2,001      1,579       1,499
Other assets.................................................................        112        112         112
                                                                               ---------  ---------  -----------
                                                                               $  14,640  $  27,358   $  38,949
                                                                               ---------  ---------  -----------
                                                                               ---------  ---------  -----------

                                      LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
  Accounts payable...........................................................  $   2,479  $   3,187   $   9,121
  Accrued liabilities........................................................      1,377      3,151       3,006
  Line of credit payable to bank.............................................      2,500      2,350       2,500
  Current portion of long-term capital lease obligations.....................        385        417         359
  Convertible subordinated debentures........................................      2,325     --          --
                                                                               ---------  ---------  -----------
    Total current liabilities................................................      9,066      9,105      14,986
Long-term capital lease obligations..........................................        910        493         343
Commitments and contingencies................................................
Stockholders' equity:
  Common stock, $0.01 par value; 25,000,000 shares authorized; 13,036,000,
   14,580,000, and 14,826,000 shares issued and outstanding in 1993, 1994,
   and 1995, respectively....................................................        130        146         148
  Additional paid-in capital.................................................      8,149     13,526      14,627
  Notes receivable from stockholders.........................................       (194)    --          --
  Retained earnings (deficit)................................................     (3,421)     4,088       8,845
                                                                               ---------  ---------  -----------
    Total stockholders' equity...............................................      4,664     17,760      23,620
                                                                               ---------  ---------  -----------
                                                                               $  14,640  $  27,358   $  38,949
                                                                               ---------  ---------  -----------
                                                                               ---------  ---------  -----------
</TABLE>

          See accompanying notes to consolidated financial statements.

                                      F-3
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                                            SIX MONTHS ENDED
                                                            YEARS ENDED DECEMBER 31,            JUNE 30,
                                                         -------------------------------  --------------------
                                                           1992       1993       1994       1994       1995
                                                         ---------  ---------  ---------  ---------  ---------
                                                                                              (UNAUDITED)
<S>                                                      <C>        <C>        <C>        <C>        <C>
Net sales, including sales to affiliate of $18,703 and
 $5,020 in 1992 and 1993, respectively.................  $  48,769  $  45,234  $  62,513  $  27,775  $  39,216
Cost of sales..........................................     42,112     36,456     40,322     18,783     24,537
                                                         ---------  ---------  ---------  ---------  ---------
    Gross profit.......................................      6,657      8,778     22,191      8,992     14,679
Operating expenses:
  Selling and marketing................................      3,370      2,962      3,592      1,618      2,582
  Research and development.............................      2,824      2,474      3,332      1,566      2,078
  General and administrative...........................      2,515      2,690      4,643      2,175      2,583
  Provision for uncollectible accounts receivable......      1,956      4,676     --         --         --
                                                         ---------  ---------  ---------  ---------  ---------
    Operating income (loss)............................     (4,008)    (4,024)    10,624      3,633      7,436
Other income (expense)
  Interest income......................................         48        103         52         37         19
  Interest expense.....................................       (522)      (475)      (512)      (265)       (85)
  Other income (expense)...............................         21        (94)      (103)       (42)       (51)
                                                         ---------  ---------  ---------  ---------  ---------
    Income (loss) before income tax expense
     (benefit).........................................     (4,461)    (4,490)    10,061      3,363      7,319
Income tax expense (benefit)...........................     (1,461)       (46)     2,552        841      2,562
                                                         ---------  ---------  ---------  ---------  ---------
    Net income (loss)..................................  $  (3,000) $  (4,444) $   7,509  $   2,522  $   4,757
                                                         ---------  ---------  ---------  ---------  ---------
                                                         ---------  ---------  ---------  ---------  ---------
Earnings (loss) per share:
  Primary..............................................  $    (.25) $    (.35) $     .53  $     .18  $     .31
                                                         ---------  ---------  ---------  ---------  ---------
                                                         ---------  ---------  ---------  ---------  ---------
  Fully diluted........................................  $    (.25) $    (.35) $     .51  $     .18  $     .30
                                                         ---------  ---------  ---------  ---------  ---------
                                                         ---------  ---------  ---------  ---------  ---------
Weighted average number of shares:
  Primary..............................................     12,103     12,740     14,208     13,975     15,578
                                                         ---------  ---------  ---------  ---------  ---------
                                                         ---------  ---------  ---------  ---------  ---------
  Fully diluted........................................     12,103     12,740     15,247     14,591     15,783
                                                         ---------  ---------  ---------  ---------  ---------
                                                         ---------  ---------  ---------  ---------  ---------
</TABLE>

          See accompanying notes to consolidated financial statements.

                                      F-4
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                       (IN THOUSANDS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>
                                                     COMMON STOCK         ADDITIONAL         NOTES         RETAINED       TOTAL
                                               -------------------------    PAID-IN     RECEIVABLE FROM    EARNINGS    STOCKHOLDERS'
                                                  SHARES       AMOUNT       CAPITAL      STOCKHOLDERS      (DEFICIT)      EQUITY
                                               ------------  -----------  -----------  -----------------  -----------  ------------
<S>                                            <C>           <C>          <C>          <C>                <C>          <C>
Balances as of December 31, 1991.............    11,612,000   $     116    $   5,921       $  --           $   4,023    $   10,060
Common stock issued for cash upon exercise of
 options and warrants........................       206,000           2          306          --              --               308
Subordinated debentures converted............       595,000           6          589          --              --               595
Net loss.....................................       --           --           --              --              (3,000)       (3,000)
                                               ------------       -----   -----------         ------      -----------  ------------
Balances as of December 31, 1992.............    12,413,000         124        6,816          --               1,023         7,963
Common stock issued for cash and notes
 receivable from stockholders upon exercise
 of options..................................       442,000           4          633            (194)         --               443
Subordinated debentures converted............       181,000           2          700          --              --               702
Net loss.....................................       --           --           --              --              (4,444)       (4,444)
                                               ------------       -----   -----------         ------      -----------  ------------
Balances as of December 31, 1993.............    13,036,000         130        8,149            (194)         (3,421)        4,664
Common stock issued for cash upon exercise of
 options, net of 294,000 shares surrendered
 at exercise.................................       863,000           9          494          --              --               503
Subordinated debentures converted............       681,000           7        2,631          --              --             2,638
Tax benefit from disqualifying dispositions
 of stock options............................       --           --            2,252          --              --             2,252
Notes receivable from stockholders...........       --           --           --                 194          --               194
Net income...................................       --           --           --              --               7,509         7,509
                                               ------------       -----   -----------         ------      -----------  ------------
Balances as of December 31, 1994.............    14,580,000         146       13,526          --               4,088        17,760
Common stock issued for cash upon exercise of
 options and warrants (unaudited)............       246,000           2          726          --              --               728
Tax benefit from disqualifying dispositions
 of stock options (unaudited)................       --           --              375          --              --               375
Net income (unaudited).......................       --           --           --              --               4,757         4,757
                                               ------------       -----   -----------         ------      -----------  ------------
Balances as of June 30, 1995 (unaudited).....    14,826,000   $     148    $  14,627       $  --           $   8,845    $   23,620
                                               ------------       -----   -----------         ------      -----------  ------------
                                               ------------       -----   -----------         ------      -----------  ------------
</TABLE>

          See accompanying notes to consolidated financial statements.

                                      F-5
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                                                                       SIX MONTHS ENDED
                                                                       YEARS ENDED DECEMBER 31,            JUNE 30,
                                                                    -------------------------------  --------------------
                                                                      1992       1993       1994       1994       1995
                                                                    ---------  ---------  ---------  ---------  ---------
                                                                                                         (UNAUDITED)
<S>                                                                 <C>        <C>        <C>        <C>        <C>
Cash flows from operating activities:
  Net income (loss)...............................................  $  (3,000) $  (4,444) $   7,509  $   2,522  $   4,757
  Adjustments to reconcile net income (loss) to net cash provided
   by (used in) operating activities:
    Tax benefit related to disqualifying dispositions of stock
     options......................................................     --         --          2,252        437        375
    Depreciation and amortization.................................        849        987      1,192        557        475
    Provision for uncollectible accounts receivable...............      1,956      4,676     --         --         --
    Interest expense on convertible debentures converted to common
     stock........................................................     --             27        313         29     --
    Changes in operating assets and liabilities:
      Accounts receivable.........................................     (3,678)      (197)    (6,768)    (3,840)    (4,325)
      Inventories.................................................     (1,430)     2,469     (5,606)    (1,154)    (8,631)
      Prepaid expenses and other current assets...................        508         10       (153)        38       (339)
      Tax refund receivable.......................................        199      2,807     --         --         --
      Accounts payable............................................      5,441     (5,737)       708      2,020      5,934
      Accrued liabilities.........................................        (21)      (131)     1,774      1,683       (145)
                                                                    ---------  ---------  ---------  ---------  ---------
        Net cash provided by (used in) operating activities.......        824        467      1,221      2,292     (1,899)
                                                                    ---------  ---------  ---------  ---------  ---------
Cash flows from investing activities:
  Capital expenditures............................................       (487)      (144)      (770)      (437)      (395)
  Change in other assets..........................................        (25)        14     --         --         --
                                                                    ---------  ---------  ---------  ---------  ---------
        Net cash used in investing activities.....................       (512)      (130)      (770)      (437)      (395)
                                                                    ---------  ---------  ---------  ---------  ---------
Cash flows from financing activities:
  Repayments against line of credit, net of borrowings............     (1,136)    (1,864)      (150)      (241)       150
  Proceeds from issuance of convertible subordinated debentures...     --          3,000        300     --         --
  Repayment of convertible subordinated debentures................     --         --           (300)    --         --
  Repayment of capital lease obligations..........................       (330)      (348)      (385)      (188)      (208)
  Proceeds from exercise of stock options and warrants............        308        443        503        218        728
  Repayment of notes receivable from stockholders.................     --         --            194        194     --
                                                                    ---------  ---------  ---------  ---------  ---------
        Net cash provided by (used in) financing activities.......     (1,158)     1,231        162        (17)       670
                                                                    ---------  ---------  ---------  ---------  ---------
Net change in cash and equivalents................................       (846)     1,568        613      1,838     (1,624)
Cash and equivalents at beginning of year.........................      2,531      1,685      3,253      3,253      3,866
                                                                    ---------  ---------  ---------  ---------  ---------
Cash and equivalents at end of year...............................  $   1,685  $   3,253  $   3,866  $   5,091  $   2,242
                                                                    ---------  ---------  ---------  ---------  ---------
                                                                    ---------  ---------  ---------  ---------  ---------
Cash paid during the year:
  Interest........................................................  $     522  $     363  $     267  $     146  $      83
                                                                    ---------  ---------  ---------  ---------  ---------
                                                                    ---------  ---------  ---------  ---------  ---------
  Income taxes....................................................  $       1  $       1  $     594  $       1  $   2,588
                                                                    ---------  ---------  ---------  ---------  ---------
                                                                    ---------  ---------  ---------  ---------  ---------
Supplemental disclosure of noncash financing and investing
 activities:
      Conversion of subordinated debentures.......................  $     595  $     702  $   2,638  $     454  $  --
                                                                    ---------  ---------  ---------  ---------  ---------
                                                                    ---------  ---------  ---------  ---------  ---------
</TABLE>

          See accompanying notes to consolidated financial statements.

                                      F-6
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                       DECEMBER 31, 1992, 1993, AND 1994
             (INFORMATION AS OF JUNE 30, 1995 AND FOR THE SIX-MONTH
               PERIODS ENDED JUNE 30, 1994 AND 1995 IS UNAUDITED)

(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

    CONSOLIDATION  -- The accompanying consolidated financial statements include
the accounts of Mylex  Corporation (the Company or  Mylex) and its wholly  owned
subsidiary.  All  material intercompany  accounts  have been  eliminated  in the
consolidated financial statements.

    INDUSTRY  SEGMENT  --  Mylex   designs,  produces,  markets,  and   supports
high-performance  storage management electronics products for both PC and non-PC
servers and workstation  as well as  system boards for  personal computers,  and
operates in this one industry segment.

    REVENUE  RECOGNITION -- Net sales are recognized upon shipment to customers,
including sales made to distributors under agreements allowing limited right  of
return and price protection on merchandise unsold by the distributors. For sales
made  to  distributors, reserves  are provided  for  expected returns  and price
protection at the time of shipment.

    CASH EQUIVALENTS -- Cash equivalents include all highly liquid  investments,
consisting  principally of money  market accounts, purchased  with a maturity of
three months or less.

    INVENTORIES -- Inventories are valued at the lower of cost (first in,  first
out) or market.

    PROPERTY AND EQUIPMENT -- Property and equipment are carried at cost. Assets
recorded  under capital leases are stated at the present value of future minimum
lease payments  at the  inception of  the lease.  Depreciation on  property  and
equipment  is calculated on  the straight-line method  over the estimated useful
life of the asset (generally five  years). Assets recorded under capital  leases
are  amortized using the straight-line method over the shorter of the lease term
or estimated useful life of the asset.

    INCOME TAXES -- The  Company accounts for income  taxes using the asset  and
liability  method  whereby  deferred  assets and  liabilities  are  recorded for
differences between the book  and tax carrying amounts  of balance sheet  items.
Deferred  liabilities or assets at  the end of each  period are determined using
the tax  rate expected  to be  in effect  when the  taxes are  actually paid  or
recovered. The measurement of deferred tax assets is reduced, if necessary, by a
valuation  allowance for any tax benefits that  are not expected to be realized.
The effect on deferred tax  assets and liabilities of a  change in tax rates  is
recognized in income in the period that includes the enactment date.

    EARNINGS (LOSS) PER SHARE DATA -- Primary earnings (loss) per share is based
on  the  weighted  average common  and  common equivalent  shares,  if dilutive,
outstanding each year. Common equivalent shares consist of shares issuable  upon
the  exercise  of  stock options  and  warrants, except  where  antidilutive. In
determining fully diluted  earnings (loss) per  share, convertible  subordinated
debentures,  if  dilutive,  are included  in  outstanding shares  using  the "if
converted" method.

(2) RELATED PARTY TRANSACTIONS
    On July 17, 1992, a group of investors, consisting of certain directors  and
several  officers and stockholders of the Company, purchased a majority interest
in Northgate Computer Systems, Inc. (Northgate). As a result of this investment,
two directors and one officer of the Company have served on the Northgate  Board
of Directors. The Company has no direct equity interest in Northgate.

    As  of  December  31,  1993,  $4,633,000  of  the  Company's  gross accounts
receivable  were  attributable  to  Northgate.  These  receivables  were   fully
reserved.  The reserve  was increased  to 100% of  the outstanding  balance as a
result of decreased payments from Northgate during the third quarter of 1993 and
the continued  deterioration during  1993  of Northgate's  financial  condition.
Subsequent to

                                      F-7
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                       DECEMBER 31, 1992, 1993, AND 1994
             (INFORMATION AS OF JUNE 30, 1995 AND FOR THE SIX-MONTH
               PERIODS ENDED JUNE 30, 1994 AND 1995 IS UNAUDITED)

(2) RELATED PARTY TRANSACTIONS (CONTINUED)
August  1993,  sales to  Northgate have  been minimal  and on  a cash-in-advance
basis. During 1994, all outstanding receivables from Northgate were written  off
against the reserve. Northgate filed for bankruptcy in 1994.

(3) INVENTORIES
    Inventories consisted of the following (in thousands):

<TABLE>
<CAPTION>
                                                                          DECEMBER 31,
                                                                      --------------------
                                                                        1993       1994
                                                                      ---------  ---------   JUNE 30,
                                                                                               1995
                                                                                            -----------
                                                                                            (UNAUDITED)
<S>                                                                   <C>        <C>        <C>
Raw materials.......................................................  $   1,495  $   6,924   $  11,052
Work in process.....................................................      2,683      2,263       5,748
Finished goods......................................................        453      1,050       2,068
                                                                      ---------  ---------  -----------
                                                                      $   4,631  $  10,237   $  18,868
                                                                      ---------  ---------  -----------
                                                                      ---------  ---------  -----------
</TABLE>

(4) PROPERTY AND EQUIPMENT
    Property and equipment consisted of the following (in thousands):

<TABLE>
<CAPTION>
                                                                            DECEMBER 31,
                                                                        --------------------
                                                                          1993       1994
                                                                        ---------  ---------   JUNE 30,
                                                                                                 1995
                                                                                              -----------
                                                                                              (UNAUDITED)
<S>                                                                     <C>        <C>        <C>
Machinery and equipment...............................................  $   3,656  $   4,122   $   4,308
Furniture and fixtures................................................        511        656         661
Computer equipment and software.......................................      1,213      1,372       1,550
                                                                        ---------  ---------  -----------
                                                                            5,380      6,150       6,519
Less accumulated depreciation and amortization........................      3,379      4,571       5,020
                                                                        ---------  ---------  -----------
                                                                        $   2,001  $   1,579   $   1,499
                                                                        ---------  ---------  -----------
                                                                        ---------  ---------  -----------
</TABLE>

    As  of  December  31,  1994, equipment  recorded  under  capital  leases was
$2,079,000 and accumulated amortization thereon was $1,648,000.

(5) ACCRUED LIABILITIES
    Accrued liabilities consisted of the following (in thousands):

<TABLE>
<CAPTION>
                                                                            DECEMBER 31,
                                                                        --------------------
                                                                          1993       1994
                                                                        ---------  ---------   JUNE 30,
                                                                                                 1995
                                                                                              -----------
                                                                                              (UNAUDITED)
<S>                                                                     <C>        <C>        <C>
Accrued compensation and benefits.....................................  $     400  $   1,234   $   1,117
Accrued legal.........................................................     --            855         855
Other.................................................................        977      1,062       1,034
                                                                        ---------  ---------  -----------
                                                                        $   1,377  $   3,151   $   3,006
                                                                        ---------  ---------  -----------
                                                                        ---------  ---------  -----------
</TABLE>

(6) LINE OF CREDIT
    The Company has a $6,000,000 line of credit expiring in May 1995 which bears
interest at the bank's  prime rate plus  0.75% (8.5% as  of December 31,  1994).
Borrowings  under this line  of credit are  limited to 80%  of eligible accounts
receivable   and   are   secured   by   the   Company's   unencumbered   assets.

                                      F-8
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                       DECEMBER 31, 1992, 1993, AND 1994
             (INFORMATION AS OF JUNE 30, 1995 AND FOR THE SIX-MONTH
               PERIODS ENDED JUNE 30, 1994 AND 1995 IS UNAUDITED)

(6) LINE OF CREDIT (CONTINUED)
The  agreement requires the Company to  maintain a $500,000 compensating balance
and contains covenants that include the maintenance of specific financial ratios
and  prohibitions  on  dividend  payments,  stock  repurchases,  and  additional
indebtedness without the prior consent of the bank. As of December 31, 1994, the
Company  was in compliance with these covenants, except for the covenant related
to inventory turns, which  was waived by the  bank. The compensating balance  is
not legally restricted. See Note 12.

(7) INCOME TAXES
    Income  taxes for the  years ended December  31, 1992, 1993,  and 1994, were
comprised of the following (in thousands):

<TABLE>
<CAPTION>
                                                                                   DECEMBER 31,
                                                                          -------------------------------
                                                                            1992       1993       1994
                                                                          ---------  ---------  ---------
<S>                                                                       <C>        <C>        <C>
Current tax expense (benefit):
  Federal...............................................................  $  (1,927) $    (472) $     911
  State.................................................................          1          1         27
                                                                          ---------  ---------  ---------
    Total current.......................................................     (1,926)      (471)       938
                                                                          ---------  ---------  ---------
Deferred tax expense (benefit):
  Federal...............................................................        465        425       (638)
  State.................................................................     --         --         --
                                                                          ---------  ---------  ---------
    Total deferred......................................................        465        425       (638)
                                                                          ---------  ---------  ---------
Charge in lieu of taxes attributable to employer stock
 option plans:
  Current year..........................................................     --         --          1,222
  Prior years...........................................................     --         --          1,030
                                                                          ---------  ---------  ---------
    Total charge........................................................     --         --          2,252
                                                                          ---------  ---------  ---------
    Total tax expense (benefit).........................................  $  (1,461) $     (46) $   2,552
                                                                          ---------  ---------  ---------
                                                                          ---------  ---------  ---------
</TABLE>

                                      F-9
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                       DECEMBER 31, 1992, 1993, AND 1994
             (INFORMATION AS OF JUNE 30, 1995 AND FOR THE SIX-MONTH
               PERIODS ENDED JUNE 30, 1994 AND 1995 IS UNAUDITED)

(7) INCOME TAXES (CONTINUED)
    The reconciliation  between  the amount  computed  by applying  the  federal
statutory rate of 34% to income (loss) before income taxes and the actual income
tax expense (benefit) were as follows (in thousands):

<TABLE>
<CAPTION>
                                                                                  DECEMBER 31,
                                                                         -------------------------------
                                                                           1992       1993       1994
                                                                         ---------  ---------  ---------

<S>                                                                      <C>        <C>        <C>
Statutory federal income tax, at 34%...................................  $  (1,517) $  (1,527) $   3,421
State income tax, net of federal tax benefit...........................          1       (275)       102
Foreign sales corporation benefit......................................     --         --            (41)
Credits available from application of loss carryback...................     --           (335)    --
Change in the beginning of the year valuation allowance, including
 losses and credits for which no benefit has been recognized...........     --          2,081     (1,986)
Credit to paid-in capital..............................................     --         --          1,030
Other, net.............................................................         55         10         26
                                                                         ---------  ---------  ---------
  Total tax expense (benefit)..........................................  $  (1,461) $     (46) $   2,552
                                                                         ---------  ---------  ---------
                                                                         ---------  ---------  ---------
</TABLE>

    The  tax  effect  of temporary  differences  that give  rise  to significant
portions of the deferred  tax assets and deferred  tax liabilities is  presented
below (in thousands).

<TABLE>
<CAPTION>
                                                                                        DECEMBER 31,
                                                                                    --------------------
                                                                                      1993       1994
                                                                                    ---------  ---------
<S>                                                                                 <C>        <C>
Deferred tax assets:
  Accounts receivable valuation reserves..........................................  $   1,800  $     214
  Lower of cost or market adjustments to inventory and other tax related
   adjustments....................................................................        190        145
  Reserves and accruals for reporting purposes not taken for tax purposes.........        220      1,059
  Other credits...................................................................        600     --
  State tax benefit, including net operating loss carryovers, net of federal tax
   reduction......................................................................        675     --
  Valuation allowance.............................................................     (3,285)    (1,299)
                                                                                    ---------  ---------
    Net deferred tax assets.......................................................        200        119
                                                                                    ---------  ---------
Deferred tax liabilities:
  Depreciation and amortization...................................................       (200)      (119)
                                                                                    ---------  ---------
    Net deferred tax liabilities..................................................       (200)      (119)
                                                                                    ---------  ---------
    Net deferred tax assets.......................................................  $  --      $  --
                                                                                    ---------  ---------
                                                                                    ---------  ---------
</TABLE>

    The  net change in the  valuation allowance for the  year ended December 31,
1994, was a decrease of $956,000, after adjustment for approximately  $1,030,000
realized  benefit from prior  years' disqualifying disposition  of stock options
credited to paid-in capital.  Management believes sufficient uncertainty  exists
regarding  the  realizability  of these  net  deferred  tax assets  such  that a
valuation allowance is required.

                                      F-10
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
                       December 31, 1992, 1993, and 1994
             (Information as of June 30, 1995 and for the six-month
               periods ended June 30, 1994 and 1995 is unaudited)

(7)  INCOME TAXES (CONTINUED)

    As  of December 31, 1994,  for California tax purposes,  the Company had net
operating loss carryforwards  of approximately  $975,000, which  expire in  1997
through  1998. The Company  had no loss carryforwards  for federal tax purposes.
The difference between the net  operating loss carryforwards for federal  income
tax  purposes and for California income tax purposes results from limitations on
the carryback of losses in California.

(8) CONVERTIBLE SUBORDINATED DEBENTURES
    During 1993,  the  Company  sold $3,000,000  of  8%  convertible  debentures
through  a  private placement.  The  debentures paid  interest  semiannually and
provided for conversion of  the principal and  any outstanding accrued  interest
into  common stock at conversion prices ranging  from $3.875 to $5.00 per share.
Members  of  the  Company's  Board  of  Directors  purchased  $775,000  of   the
debentures,  and, during 1993, $675,000 of the debentures held by Board members,
along with $27,300 of related accrued interest, were converted to common stock.

    Of the $2,325,000 debentures outstanding  as of December 31, 1993,  $300,000
were  due December 31, 1993, and $2,025,000  were due at the earlier of December
31, 1994, or the closing date of a public offering of stock or debt pursuant  to
which  the Company receives proceeds of at least $10,000,000. The debentures due
December 31, 1993, were repaid in January 1994.

    During 1994, an additional $300,000 of 8% convertible debentures were issued
to replace those  repaid in January  1994. These debentures  and the  $2,025,000
outstanding  as of  December 31,  1993, along  with $313,000  of related accrued
interest, were converted to  common stock during  1994 at a  rate of $3.875  per
share.

    With  respect to common stock issued  upon conversion of the debentures, the
holders may  require,  at  the  Company's  expense,  filing  of  a  registration
statement  under the Securities Act of  1993 covering the securities issued upon
conversion. See Note 12.

(9) COMMITMENTS AND CONTINGENCIES
    Future minimum payments  under leases as  of December 31,  1994, will be  as
follows (in thousands):

<TABLE>
<CAPTION>
YEAR ENDING                                                                CAPITAL    OPERATING
DECEMBER 31,                                                               LEASES      LEASES
------------------------------------------------------------------------  ---------  -----------
<S>                                                                       <C>        <C>
  1995..................................................................  $     493   $     631
  1996..................................................................        522         211
                                                                          ---------       -----
Total future minimum lease payments.....................................      1,015   $     842
                                                                                          -----
                                                                                          -----
Less amount representing interest.......................................        105
                                                                          ---------
Present value of capital lease obligations..............................        910
Less current portion....................................................        417
                                                                          ---------
Noncurrent portion of capital lease obligations.........................  $     493
                                                                          ---------
                                                                          ---------
</TABLE>

    The  Company leases its facility under  a noncancelable lease agreement that
expires in 1996  and provides for  renewal options. Under  this lease, Mylex  is
required to pay property taxes, insurance, and normal maintenance costs.

    Rent  expense was $768,000, $824,000, and  $743,000 in 1992, 1993, and 1994,
respectively.

                                      F-11
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                       DECEMBER 31, 1992, 1993, AND 1994
             (INFORMATION AS OF JUNE 30, 1995 AND FOR THE SIX-MONTH
               PERIODS ENDED JUNE 30, 1994 AND 1995 IS UNAUDITED)

(9) COMMITMENTS AND CONTINGENCIES (CONTINUED)
    The Company is party to an action that alleges breach of contract and  other
claims  relating to a royalty agreement entered  into by the Company. The amount
of  damages  sought  is  unspecified.  The  Company  has  certain  defenses  and
counterclaims and intends to defend this action vigorously.

    The  former chief executive officer of the Company filed a complaint against
the Company and its  outside directors in October  1994, claiming breach of  his
employment agreement. The claim is for compensatory and consequential damages of
at  least $5 million. The Company believes  it has meritorious defenses and will
vigorously defend this lawsuit.

    The results  of  legal  proceedings  cannot  be  predicted  with  certainty;
however,  in the opinion  of management, the  Company does not  have a potential
liability in connection with these and  any other proceedings that would have  a
material adverse effect on the Company.

(10) STOCKHOLDERS' EQUITY
    Mylex's  1983 and 1993 incentive and nonqualified stock option plans provide
for the  grant,  by the  Board  of Directors,  of  stock options  to  employees,
officers,  consultants, and outside directors at an exercise price per share not
less than the fair market  value on the date  of grant. Incentive stock  options
granted  under the 1983  plan generally vest  ratably over 3  years from date of
grant and expire 10 years from  date of grant. Nonqualified stock options  begin
vesting immediately and expire 5 years from date of grant. Options granted under
the  1993 plan generally  vest ratably over 4  years from the  date of grant and
expire 10 years from the date of grant.

                                      F-12
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                       DECEMBER 31, 1992, 1993, AND 1994
             (INFORMATION AS OF JUNE 30, 1995 AND FOR THE SIX-MONTH
               PERIODS ENDED JUNE 30, 1994 AND 1995 IS UNAUDITED)

(10) STOCKHOLDERS' EQUITY (CONTINUED)
    The 1983  and  1993 plans  also  provide  for automatic  grants  to  outside
directors of options to purchase 50,000 common shares upon election to the Board
of  Directors. A  summary of  stock option transactions  under the  plans are as
follows:

<TABLE>
<CAPTION>
                                                                                       OUTSTANDING OPTIONS
                                                                     SHARES     ---------------------------------
                                                                   AVAILABLE       NUMBER
                                                                   FOR GRANT     OF SHARES      EXERCISE PRICE
                                                                  ------------  ------------  -------------------
<S>                                                               <C>           <C>           <C>
Balances as of December 31, 1991................................        42,000     2,386,000       $1.125 -  5.06
  Increases in number of shares available for grant.............       750,000       --               --
  Granted.......................................................      (300,000)      300,000         4.25 -  4.75
  Exercised.....................................................       --           (163,000)       1.125 -  2.75
  Canceled......................................................       320,000      (320,000)       1.125 -  4.75
                                                                  ------------  ------------
Balances as of December 31, 1992................................       812,000     2,203,000         1.15 -  5.06
  Increases in number of shares available for grant.............       750,000       --               --
  Granted.......................................................    (1,168,000)    1,168,000         3.87 -  7.00
  Exercised.....................................................       --           (442,000)        1.15 -  4.63
  Canceled......................................................        29,000       (29,000)        2.75 -  4.63
  Shares expiring with 1983 plan................................      (404,000)      --               --
                                                                  ------------  ------------
Balances as of December 31, 1993................................        19,000     2,900,000         1.25 -  7.00
  Increases in number of shares available for grant.............       625,000       --               --
  Granted.......................................................      (566,000)      566,000         4.63 - 10.25
  Exercised.....................................................       --         (1,157,000)        1.25 -  4.13
  Canceled under 1983 plan......................................       --           (491,000)        1.50 -  5.75
  Canceled under 1993 plan......................................        41,000       (41,000)        3.88 - 10.25
                                                                  ------------  ------------
Balances as of December 31, 1994................................       119,000     1,777,000         1.56 - 10.25
  Increases in number of shares available for grant
   (unaudited)..................................................       700,000       --               --
  Granted (unaudited)...........................................      (424,000)      424,000        10.50 - 10.63
  Exercised (unaudited).........................................       --           (188,000)        1.56 -  5.75
  Canceled under 1983 plan (unaudited)..........................       --             (1,000)                4.13
  Canceled under 1993 plan (unaudited)..........................        51,000       (51,000)        5.00 - 10.25
                                                                  ------------  ------------
Balances as of June 30, 1995 (unaudited)........................       446,000     1,961,000         1.56 - 10.63
                                                                  ------------  ------------
                                                                  ------------  ------------
Exercisable as of December 31, 1994.............................                     553,000         1.56 -  5.06
                                                                                ------------
                                                                                ------------
Exercisable as of June 30, 1995 (unaudited).....................                     563,000         1.56 -  5.06
                                                                                ------------
                                                                                ------------
</TABLE>

    As of  December 31,  1994,  the Company  had  warrants outstanding  for  the
purchase of 7,500 shares at $1.125 per share.

(11) CONCENTRATION OF CREDIT RISK AND SALES TO MAJOR CUSTOMERS
    The Company sells its products primarily to original equipment manufacturers
and  distributors  in  the  personal computer  industry.  The  Company generally
requires no collateral on trade receivables,

                                      F-13
<PAGE>
                        MYLEX CORPORATION AND SUBSIDIARY
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                       DECEMBER 31, 1992, 1993, AND 1994
             (INFORMATION AS OF JUNE 30, 1995 AND FOR THE SIX-MONTH
               PERIODS ENDED JUNE 30, 1994 AND 1995 IS UNAUDITED)

(11) CONCENTRATION OF CREDIT RISK AND SALES TO MAJOR CUSTOMERS (CONTINUED)
although certain export sales are guaranteed by letters of credit. As  described
in  Note 2, the Company's largest customer in 1992, Northgate, was an affiliate.
Receivables  from  Northgate  were  fully  reserved  during  1993  due  to   the
deterioration  of Northgate's financial condition. The receivable from Northgate
was written off during 1994 as a result of Northgate's filing for bankruptcy.

    Sales to  major customers,  as a  percentage of  net sales,  and the  amount
receivable  (in thousands) as of December 31,  1994, from such customers were as
follows:

<TABLE>
<CAPTION>
                                                                                                  GROSS AMOUNT RECEIVABLE
                                                                                                 --------------------------
                                                                                                 DECEMBER 31,
CUSTOMER                                    1992         1993         1994                           1994
---------------------------------------     -----        -----        -----       SIX-MONTHS     -------------
                                                                                     ENDED
                                                                                 JUNE 30, 1995                   JUNE 30,
                                                                                ---------------                    1995
                                                                                  (UNAUDITED)                   -----------
                                                                                                                (UNAUDITED)
<S>                                      <C>          <C>          <C>          <C>              <C>            <C>
A......................................      --              18%          22%            31%           1,426         5,831
B......................................      --           --              17%            15%           1,788           700
C......................................      --              10%          14%            10%           1,018         1,783
D......................................      --               3%           5%             1%           1,631         1,106
E......................................          1%          10%           4%         --                  95             7
Northgate..............................         38%          11%       --             --              --            --
</TABLE>

    Export sales, principally  to Europe,  comprised 29%,  21%, and  16% of  net
sales in 1992, 1993, and 1994, respectively.

(12) SUBSEQUENT EVENTS (UNAUDITED)

CREDIT LINE AGREEMENT

    Effective  May  15, 1995,  the Company  renegotiated  its revolving  line of
credit, described at  Note 6,  with its bank.  The renegotiated  line of  credit
expires May 15, 1996, bears interest at the Bank's prime rate, is secured by all
of  the Company's  assets and  is subject  to an  overall borrowing  limit of $8
million. Under the agreement, the Company must achieve certain financial results
and maintain compliance  with certain  financial covenants. The  Company was  in
compliance with these covenants as of June 30, 1995.

REGISTRATION OF COMMON STOCK

    In  June,  1995  the  Company  filed  a  registration  statement  under  the
Securities Act of 1933 covering the 862,000 shares of common stock issued during
1993 and  1994  upon  conversion  of  the  convertible  subordinated  debentures
described at Note 8.

                                      F-14
<PAGE>
                              DESCRIPTION APPENDIX

1.   The table in page  19 illustrates the functions of  RAID Levels 0,1,3 and 5
    and summarizes the benefits offered by each level.

2.  The diagram on page 22  depicts a Mylex RAID controller and illustrates  the
    command flow typically associated with the reading of stored data.

3.   The diagram on page 23 depicts  a Mylex RAID controller and illustrates the
    command flow typically associated with the writing of data to storage.

4.  The diagram on the gatefold depicts a Mylex RAID controller and explains how
    different levels of RAID function.

5.   The  inside  front cover  contains  a  picture of  a  Mylex  DAC960PD  RAID
    controller.
<PAGE>
---------------------------------------------
                                   ---------------------------------------------
---------------------------------------------
                                   ---------------------------------------------

    NO  DEALER, SALESMAN  OR ANY  OTHER PERSON HAS  BEEN AUTHORIZED  TO GIVE ANY
INFORMATION OR TO MAKE  ANY REPRESENTATION NOT CONTAINED  IN THIS PROSPECTUS  IN
CONNECTION  WITH THE OFFERING COVERED BY THIS  PROSPECTUS AND, IF GIVEN OR MADE,
SUCH INFORMATION  OR REPRESENTATION  MUST  NOT BE  RELIED  UPON AS  HAVING  BEEN
AUTHORIZED  BY  THE COMPANY  OR ANY  UNDERWRITER. NEITHER  THE DELIVERY  OF THIS
PROSPECTUS NOR ANY SALE MADE HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE AN
IMPLICATION THAT  THERE HAS  BEEN  NO CHANGE  IN THE  FACTS  SET FORTH  IN  THIS
PROSPECTUS  OR IN THE AFFAIRS OF THE COMPANY  SINCE THE DATE HEREOF OR SINCE THE
DATES AS OF  WHICH INFORMATION  IS SET FORTH  HEREIN. THIS  PROSPECTUS DOES  NOT
CONSTITUTE  AN OFFER TO SELL,  OR A SOLICITATION OF AN  OFFER TO BUY, THE COMMON
STOCK IN ANY JURISDICTION  WHERE, OR TO  ANY PERSON TO WHOM,  IT IS UNLAWFUL  TO
MAKE SUCH OFFER OR SOLICITATION.

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

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                      PAGE
                                                    ---------
<S>                                                 <C>
Prospectus Summary................................          3
Risk Factors......................................          5
Use of Proceeds...................................          9
Price Range of Common Stock.......................          9
Dividend Policy...................................          9
Capitalization....................................         10
Selected Historical Financial Data................         11
Management's Discussion and Analysis of Financial
 Condition and Results of Operations..............         12
Business..........................................         18
Management........................................         32
Certain Relationships and Related Transactions....         34
Shares Eligible for Future Sale...................         35
Principal Shareholders............................         36
Underwriting......................................         37
Legal Matters.....................................         38
Experts...........................................         38
Additional Information............................         39
Available Information.............................         39
Information Incorporated by Reference.............         40
Index to Consolidated Financial Statements........        F-1
</TABLE>

                                2,000,000 Shares

                                       x

                                  CORPORATION

                                  Common Stock

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

                                   PROSPECTUS

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

                            Needham & Company, Inc.

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

                               September 20, 1995

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