ANCOR COMMUNICATIONS INC /MN/
10-K405, 1998-03-31
COMPUTER COMMUNICATIONS EQUIPMENT
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<PAGE>
 
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                    FORM 10-K
                     ANNUAL REPORT UNDER SECTION 13 OR 15(D)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

(Mark One)
    |X| Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange
        Act of 1934 for the year ended December 31, 1997

    |_| Transition Report Pursuant to Section 13 or 15(d) of the Securities
        Exchange Act of 1934.

Commission File Number 1-2982

                       ANCOR COMMUNICATIONS, INCORPORATED
               -------------------------------------------------
             (Exact name of registrant as specified in its charter)

            MINNESOTA                                       41-1569659
- ---------------------------------               --------------------------------
  (State or other jurisdiction                 (IRS Employer Identification No.)
 of incorporation or organization) 


 6130 BLUE CIRCLE DRIVE  MINNETONKA, MINNESOTA                 55343
- ----------------------------------------------               ---------
  (Address of principal executive offices)                   (Zip code)

        Registrant's Telephone number, including area code (612) 932-4000


           Securities registered pursuant to Section 12(b) of the Act:


       TITLE OF EACH CLASS             NAME OF EACH EXCHANGE ON WHICH REGISTERED
       --------------------            -----------------------------------------
Common Stock, par value $.01 per share           Pacific Stock Exchange

        Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or such shorter period that the registrant was required
to file such reports) and (2) has been subject to such filing requirements for
the past 90 days. Yes [X] No [ ]

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [X]

As of March 20, 1998, the Company had 11,919,163 shares of Common Stock
outstanding. The aggregate market value of the 11,873,863 shares of Common Stock
held by non-affiliates of the Company was $65,306,246, based on the closing
share price on March 20, 1998 on the Nasdaq SmallCap Market.

Documents incorporated by reference: Certain responses to Part III are
incorporated herein by reference to information contained in the Company's
definitive proxy statement for its 1998 annual meeting of shareholders to be
filed with the Securities and Exchange Commission on or before April 30, 1998.


================================================================================
<PAGE>
 
                                TABLE OF CONTENTS




Item 1.  Business............................................................  3

Item 2.  Properties..........................................................  7

Item 3.  Legal Proceedings...................................................  8

Item 4.  Submission of Matters to a Vote of Security Holders.................  8

                                             PART II

Item 5.  Market for Registrant's Common Equity and Related
         Stockholder Matters.................................................  8

Item 6.  Selected Financial Data............................................. 10

Item 7.  Management's Discussion and Analysis of Financial Condition
         and Results of Operations........................................... 11

Item 7A. Quantitative and Qualitative Disclosures about Market Risks......... 17

Item 8.  Financial Statements and Supplementary Data......................... 17

Item 9.  Changes in and Disagreements with Accountants on Accounting
         and Financial Disclosure............................................ 17

                                            PART III

Item 10. Directors, Executive Officers, Promoters and Control Persons:
         Compliance with Section 16(a) of the Exchange Act................... 17

Item 11. Executive Compensation.............................................. 18

Item 12. Security Ownership of Certain Beneficial Owners and Management...... 18

Item 13. Certain Relationships and Related Transactions...................... 18

                                             PART IV

Item 14. Exhibits, Financial Statements, Schedules and Reports on Form 8-K... 18

                                       2
<PAGE>
 
                                     PART I

ITEM 1. BUSINESS

GENERAL

Ancor Communications, Incorporated ("the Company"), incorporated in 1986, is
recognized as a leading developer of Fibre Channel network products. Fibre
Channel is a high bandwidth, low latency advance in data communications
technology developed under the auspices of the American National Standards
Institute (ANSI). The Company develops, manufactures, and markets Fibre Channel
switches, interface adapters and application specific integrated circuits
(ASICs).

In 1992, the Company delivered its first prototype Fibre Channel switches and
interface adapters. Commercial Fibre Channel switch and interface deliveries
began in 1993. The Company's Fibre Channel products are used by organizations
worldwide for enhanced network performance, scalability and connectivity. Fibre
Channel enables the transfer of data at speeds ranging from 266 Mbps to 1
Gigabit per second.

Since its inception, the Company's core technology has been built around the
utilization of fiber optic cable for data transmission. Its current Fibre
Channel product category was initiated in 1988 when the Company participated as
an original member of the founding task group of the ANSI committee dedicated to
the creation of the Fibre Channel standard. Today the Company -- an active
member of the ANSI Fibre Channel committee and the Fibre Channel Association --
focuses entirely on the development of Fibre Channel solutions.

PRODUCTS

The Company's family of Fibre Channel products currently consists of switches,
adapters and routers sold as integrated data communication systems or as
separate components. The Company's adapters are designed to be installed in
personal computers, workstations and other devices that are interconnected to
the Company's Fibre Channel switches. The Company has also developed ASICs which
are a component of its adapters and switches, but which can be sold as separate
products.


The Company's switches enable networks of up to 3072 nodes to be built by
linking multiple switches in 8, 16 and 64 node increments. Through the Fibre
Channel switch, users are able to establish multiple simultaneous direct connect
and shared connect links. This technology, called two-dimensional switching, is
important because it provides the advantage of both direct and shared links in a
single network.

Direct connect links create an actual physical, dedicated connection between two
devices with the entire bandwidth available to serve each direct link, thus
providing a fast and reliable medium for sending large volumes of data. Shared
connect links send and receive data without establishing a dedicated physical
connection so that other devices can also use the medium. 

                                       3
<PAGE>
 
Shared connect links are more efficient for smaller data transmissions because
the overhead of establishing a direct connect link is avoided.

The Company's FCS(TM) 266 switch completed in 1993, its FCS(TM) 1062, completed
in 1995, and its MKII switch completed in 1997, have been shipped to over 89
customers. Net sales of these switches accounted for approximately $4.2 million
of revenue in 1997, $4.2 million of revenue in 1996, and $2.0 million of revenue
in 1995.

The Company's adapters provide an "intelligent" interface between the Fibre
Channel switch and varying hardware devices. This interface is designed to
permit higher speed data transfers to or from the host device and shift
communications responsibilities from the host system to the adapter, thereby
reducing overhead. The Company's adapters control communications by an imbedded
I/O processor which manages all data transfer and Fibre Channel communications.
Adapter net sales totaled approximately $3.5 million of revenue in 1997, $1.8
million of revenue in 1996, and $1.6 million of revenue in 1995.

The Company's Fibre Link products route traffic among a combination of Fibre
Channel systems, Unix systems and Netware networks to meet diverse enterprise
communications requirements.

The Company's ASICs provide building blocks at the chip level for implementing
Fibre Channel technology. These ASICs combine a number of Fibre Channel
functions in a single chip and thereby substantially reduce the number of
components needed to implement Fibre Channel switches and adapters. The
Company's ASICs are components of its adapters and switches. Although the
Company's ASICs could be sold as a separate product, the Company has not done so
to date.


FIBRE CHANNEL MARKET

The market for Fibre Channel addresses those customers who need to transfer
large amounts of data reliably at high speeds without network degradation. The
Fibre Channel market encompasses numerous applications within the multi-billion
dollar data and network communications market. Additionally, an emerging market
for Fibre Channel switches is developing in storage area networks, in which
switches facilitate connections between multiple servers and storage subsystems.
Various market research firms, such as EMF Associates and Ryan, Hankin, Kent
Inc., estimate the market for Fibre Channel products in the year 2000 will be
over $1.0 billion.


SALES AND MARKETING

The Company markets its products through an internal sales force which focuses
on original equipment manufacturers ("OEMS"), system integrators, various
indirect selling channels and major end users. Sales efforts are concentrated in
North America, Europe and the Pacific Basin. 

                                       4
<PAGE>
 
In addition to direct selling, various marketing and promotional techniques are
employed to increase sales, including seminars, trade shows, media advertising
and sales agencies.

The Company has historically sold its products to resellers or end users. In the
future, however, the Company expects that most of its sales will be made to OEMs
or resellers more narrowly focused on specific vertical markets which the
Company believes are most appropriate for its products. The company has achieved
limited success in sales to resellers lacking the appropriate experience and
market focus.

A significant portion of the Company's revenues (88% in fiscal 1997, 41% in
fiscal 1996 and 24% in 1995) were generated by a single customer, Hucom, Inc.
Product purchased from the Company by Hucom is remarketed to end users. A
significant portion of Hucom's sales of Ancor's products in fiscal 1997 and
fiscal 1996 have been to one end user. In future periods, Hucom's sales of
Ancor's products to this end user are expected to be significantly less than in
fiscal 1997. The Company's revenues in the future may also be generated by a
single customer or a small number of significant customers. See Note 5 to the
financial statements.

As of February 28, 1998, the sales organization was made up of thirteen field
sales and application engineering personnel and eight support professionals.


COMPETITION

The Company's Fibre Channel products encounter competition from other Fibre
Channel products in addition to competition from other network technology
products. For example, Brocade Communications Systems, Inc., Arcxel, and McData
have developed Fibre Channel switches. Other companies may also be developing
switches. In addition, a number of companies, including Emulex Corp, Q Logic
Corp., Jaycor Corp. Gadzooks Corp., G2 Corp., Vixel Corporation and Interphase
Corp. are developing Fibre Channel products other than switches, such as
adapters or hubs, and the Company anticipates that these and other companies
will introduce commercial Fibre Channel products in the near future. The Company
believes the introduction of additional competitors will enhance market
acceptance of Fibre Channel technology. Some of the companies that produce or
may produce Fibre Channel products competitive with the Company's products have
substantially greater financial, technological and marketing resources than the
Company.

The Company's current products are all designed to comply with the Fibre Channel
standard for data communications network technology and to compete in the high
performance local area network (LAN) market and as a switching device in high
performance storage area network (SAN) markets. The Company's success will thus
depend on the market acceptance of Fibre Channel as a technology for addressing
data communications and data storage needs.

In the LAN market Fibre Channel competes with a number of other network
technologies, including both established technologies, such as Fiber Distributed
Data Interface ("FDDI"), Ethernet, Fast Ethernet and Token Ring, and newer
technologies that have not yet achieved wide market penetration, such as Gigabit
Ethernet and Asynchronous Transfer Mode ("ATM"). The 

                                       5
<PAGE>
 
Company believes that users generally do not replace existing network
technologies until system demands significantly strain their capacity, relying
instead on interim solutions such as greater segmentation of networks using
additional networks and routers. In addition, many users who install new network
technology continue to choose the older, established technologies rather than
newer technologies such as Fibre Channel. Furthermore, users who are replacing
existing data communications networks may choose other new data communications
technologies rather than Fibre Channel; in particular, many believe that ATM or
Gigabit Ethernet products, which are available from a number of companies, are
the most significant new technologies competitive with Fibre Channel. In order
to gain market acceptance, the Company's products must be priced to provide a
cost-effective alternative to competing technologies. Market acceptance of Fibre
Channel technology may also be affected by the fact that Fibre Channel is not
suitable for wide area network ("WAN") applications due to distance limitations
specified in the American National Standard Institute ("ANSI") standards.

A number of participants in the data communications industry, including the
Company, view Fibre Channel, gigabit ethernet and ATM as complementary
technologies and envision ATM, gigabit ethernet and Fibre Channel coexisting in
the same network. Fibre Channel speed and reliability advantages can be used for
LAN backbone applications, while ethernet technologies will connect many
conventional desktop applications, and ATM can tie LANs to WANs where greater
distance is required.

In the SAN market, adoption of Fibre Channel requires computer systems
manufacturers to convert from the Small Computer System Interface (SCSI)
interconnect protocol currently being used by many manufacturers. Many computer
systems manufacturers have announced their intentions to convert to Fibre
Channel as the interconnect protocol for their products. However, there can be
no assurance that this conversion will happen, or that other computer systems
manufacturers will adopt the Fibre Channel protocol.


INTELLECTUAL PROPERTY RIGHTS

The Company's success will depend in part on its ability to protect its
proprietary rights and to operate without infringing on the proprietary rights
of third parties. The Company currently holds one U.S. patent covering certain
aspects of one of its Fibre Channel switches. The Company may apply for
additional patents in the future.

In addition to patents, the source code for the software contained in its
products is protected by copyright law. The Company intends to rely upon
unpatented trade secrets, the know-how and expertise of its employees and on
non-disclosure and confidentiality agreements with its employees, vendors and
customers. The Company has registered four trademarks with the United States
Patent and Trademark Office (the "PTO") and has filed for registration of three
additional marks in which it claims trademark rights, one of which has been
allowed.

                                       6
<PAGE>
 
RESEARCH AND DEVELOPMENT

The data network communications and storage markets are characterized by rapid
technological change, including changes in customer requirements, frequent new
product introductions and enhancements, and evolving industry standards. The
Company's success will depend in part on its ability to keep pace with
technological developments and emerging industry standards and to respond to
customer requirements by enhancing its current products and developing and
introducing new products. The Company's current efforts are focused on
development of additional switches, ASICs and adapters, and to achieve
interoperability with more devices utilizing Fibre Channel technology. As a
result, the Company has developed and capitalized, and is currently utilizing,
its own internally-built test tooling and software to assist in further
development of its products. Additionally, the Company has developed software
drivers which are sold with its adapters and switches. The development costs
associated with these drivers after the establishment of technological
feasibility are capitalized and amortized to cost of goods sold.

While the Company's capital and human resource requirements are minimized
through its strategic design development and contract manufacturing
relationships, the Company will continue to dedicate substantial expenditures to
research and development. Research and development expenditures were $4,271,393,
$3,198,155, and $2,542,407 for 1997, 1996 and 1995 respectively.

MANUFACTURING

The Company subcontracts a majority of its production activities, including the
manufacture, assembly and testing of the Company's proprietary Fibre Channel
switch and adapter designs, to organizations specializing in contract
manufacturing. Utilization of subcontractors results in dependence on the timely
delivery of high quality products from these manufacturers and may leave the
Company with less flexibility and control over the manufacturing process than if
it conducted all of these operations internally. However, the Company conducts
its own development, design and production management efforts. Purchases from a
major subcontractor were approximately $6,480,000, $5,086,000 and $870,000 in
1997, 1996 and 1995, respectively.

The majority of the components used in the Company's products are generally
available from multiple sources. However, certain of the components used in
Ancor's products are available only from a single supplier or from a limited
number of suppliers. The unavailability of adequate quantities of components, a
reduction or interruption in component supply, a disruption of existing supplier
relationships, an inability to develop alternative sources or a significant
increase in the price of components could each have a material adverse effect on
the Company's ability to produce and market its products.

EMPLOYEES

As of March 20, 1998, the Company had 70 full time employees and 2 part time
employees, including 35 in engineering and product development, 21 in sales and
marketing, 6 in manufacturing and 10 in general administration and finance. None
of the Company's employees 

                                       7
<PAGE>
 
is represented by a labor union or subject to any collective bargaining
agreement. The Company has never experienced any work stoppages and it believes
its employee relations are good.


ITEM 2. PROPERTIES

The Company's offices are located in Minnetonka, Minnesota, where it leases
27,560 square feet of space under a lease that expires in April 1999. The annual
rent is approximately $173,000. To meet its increasing space requirements, the
Company is in the process of negotiating new lease space, which it plans to
occupy in early 1999. The Company believes its rental cost will increase when it
occupies new lease space. The current facility, in the opinion of management, is
adequately covered by insurance.


ITEM 3. LEGAL PROCEEDINGS

The Company, along with Stephen O'Hara, Lee B. Lewis and Dale Showers, has been
named as a defendant in a securities action captioned Richard Radman and Sol
Rosenthal v. Ancor Communications, Inc., et al. filed in the United States
District Court for the District of Minnesota on July 24, 1997. The lawsuit
alleges that the Company violated sections 10(b) and 20(a) of the Securities
Exchange Act of 1934 when it allegedly made misleading public disclosures
relating to the Company's contract with Sequent Computer Systems, Inc. and the
Company's financial results, and seeks compensatory losses in an undetermined
amount. The lawsuit is also seeking class-action status. The lawsuit was amended
on December 1, 1997, by the plaintiffs after the Company moved to dismiss the
initial complaint. The amended complaint alleges the same claims as the initial
complaint. On March 16, 1998 the Company filed its motion to dismiss the amended
complaint. This action is in its preliminary stages and discovery is currently
stayed. The Company believes that the lawsuit is without merit and intends to
defend it vigorously.


ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

     None.


                                     PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED SHAREHOLDER MATTERS

The Company's common stock has been quoted on the Nasdaq SmallCap Market and the
Pacific Stock Exchange since its initial public offering on May 3, 1994. The
following table sets forth the high and low sale prices of the Company's common
stock for each full quarterly period within the two most recent fiscal years, as
reported by the Nasdaq SmallCap Market.

                                       8
<PAGE>
 
                             QUARTERLY STOCK PRICES
                                                         SALE PRICE
                                               -------------------------       
                                                  HIGH               LOW
                                               -------          --------
         QUARTER OF 1996:
                First                          $     7          $  5 1/8
                Second                          41 3/8             6 3/8
                Third                           20 7/8             8 3/8
                Fourth                          17 1/8            12 3/4

         QUARTER OF 1997:
                First                          $16 7/8          $      3
                Second                               9           3 13/16
                Third                           12 1/2                 7
                Fourth                        10 13/16            3 9/16

HOLDERS.

As of March 17, 1998, there were 220 holders of record of the Company's common
stock and the Company estimates there were approximately 9,432 beneficial
holders at such date. As of March 26, 1998, the last sale price of the Company's
common stock as reported by the Nasdaq SmallCap Market was $7.1875.

DIVIDENDS.

The Company has never paid cash dividends on its common stock and has no current
intentions to do so.

CHANGES IN SECURITIES.

On February 19, 1998, the Company completed a private placement of $11,000,000
(1100 shares) of Series C Preferred Stock. The Securities were privately sold to
accredited investors by Dunwoody Brokerage Services, Inc. ("Dunwoody"). As
consideration for its services, Dunwoody received a fee equal to 6% of the gross
proceeds, plus a five-year warrant to purchase 90,644 shares of Common Stock at
a price per share equal to $7.281. The securities were sold pursuant to Rule 506
under Regulation D.

The Series C Preferred Stock is convertible into Common Stock of the Company,
subject to certain restrictions, at a variable conversion rate equal to the
lower of (i) the Maximum Conversion Price (as defined below) or (ii) the average
of the three lowest closing bid prices of the Common Stock during the applicable
pricing Period (as defined below). The maximum Conversion price is equal to the
greater of (i) $9.00 per share and (ii) a price which is set at a defined
premium over the average closing bid price of the Common Stock for the 30
trading days following February 19, 1998. The applicable Pricing Period is a
number of consecutive trading days immediately preceding the date of conversion
of the Series C Preferred Stock initially equal to twelve and increased by one
additional consecutive trading day for each full calendar month which has
elapsed since February 19, 1998. 

                                       9
<PAGE>
 
ITEM 6. SELECTED FINANCIAL DATA

The information set forth below should be read in conjunction with "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and
with the financial statements, related notes thereto and other financial
information included in this Report.


STATEMENTS OF OPERATIONS DATA:                                    
<TABLE>
<CAPTION>
                                                                      YEAR ENDED DECEMBER 31,
                                                 --------------------------------------------------------
                                                    1997        1996        1995        1994        1993
                                                 ---------   ---------   ---------   ---------   --------
                                                           (in thousands, except per share data)
<S>                                               <C>         <C>         <C>         <C>         <C>    
Net sales......................................   $ 7,924     $ 6,258     $ 4,673     $ 4,761     $ 4,019
Cost of sales..................................     5,991       3,566       2,533       2,743       2,324
                                                    -----      -------     -------     -------     ------
    Gross profit...............................     1,933       2,692       2,140       2,018       1,695
Operating expenses
    Selling, general and administrative........     7,685       4,944       2,785       2,377       2,013
    Research and development...................     4,271       3,198       2,542       2,056       1,643
                                                    -----      -------     -------     -------     ------
         Total operating expenses..............    11,956       8,142       5,327       4,433       3,656
                                                   ------      -------     -------     -------     ------
    Operating loss.............................   (10,023)     (5,450)     (3,187)     (2,415)     (1,961)
Interest expense...............................        19          64         153         275         471
Other income (expense), net....................       219         224          71          95         (18)
Income taxes...................................         0           0           0           0           0
                                               ----------------------------------------------------------

Net loss.......................................   $(9,823)    $(5,290)    $(3,269)    $(2,595)    $(2,450)
                                                 ========    ========    ========    ========    ========

Basic and diluted net loss per share(1)........  $  (0.93)2  $  (0.60)2  $  (0.44)   $  (0.47)   $  (0.80)
                                                 =========   ========    ========    ========    ========
Weighted average common
    shares outstanding.........................    10,963       9,351       7,449       5,516       3,075
                                                 =========   ========    ========    ========    ========
</TABLE>


BALANCE SHEET DATA:
<TABLE>
<CAPTION>
                                                                      AT DECEMBER 31,
                                                --------------------------------------------------------
                                                    1997        1996        1995        1994        1993
                                                 ---------   ---------   ---------   ---------   -------
                                                                      (in thousands)
<S>                                               <C>         <C>         <C>         <C>         <C>     
Working capital (deficit)......................   $ 4,432     $ 6,384     $ 1,561     $ 2,101     $(1,218)
Total assets...................................    10,164      12,262       5,773       4,443       2,642
Long-term debt net of current maturities.......       130         178         200       1,657       3,657
Shareholders' equity (deficit).................     8,316       9,907       2,759       1,299      (4,628)
</TABLE>

(1)  See Note 1 to Financial Statements.

(2)  Includes an adjustment of 3 cents loss per share in 1997 and 3 cents loss
     per share in 1996 for the effect of the accretion benefit earned by the
     Preferred shareholders from the date of issue to the date of conversion or
     to the end of the reporting period, whichever is earlier. Such accretion
     amounted to $344,939 in 1997 and $331,334 in 1996.

                                       10
<PAGE>
 
ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

RESULTS OF OPERATIONS - FOR THE YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995.

The following table sets forth selected information derived from the Company's
Statement of Operations as a percentage of net sales:

                                                      FOR THE TWELVE MONTHS
                                                         ENDED DECEMBER 31
                                                ------------------------------
                                                1997         1996         1995
                                                ----         ----         ----

Net sales                                       100.0%       100.0%       100.0%
Cost of sales                                    75.6         57.0         54.2
                                               ------       ------       ------

       Gross profit                              24.4         43.0         45.8

Operating expenses
       Selling, general and administrative       97.0         79.0         59.6
       Research and development                  53.9         51.1         54.4
                                               ------       ------       ------

Total operating expenses                        150.9        130.1        114.0
                                               ------       ------       ------

Operating loss                                 -126.5        -87.1        -68.2

Nonoperating income (expense)
       Interest expense                          -0.2         -1.0         -3.3
       Other, net                                 2.7          3.6          1.5
                                               ------       ------       ------
Net loss                                       -124.0%       -84.5%       -70.0%
                                               ======       ======       ======


         NET SALES Net sales for 1997 increased by approximately $1,666,000
(27%) from 1996 to $7,924,001. This increase in net sales is due primarily to a
significant increase in net sales to Hucom, Inc., the Company's Japanese
distributor, offset by a decrease in sales domestically. International net sales
increased $4,063,000 (124%) from approximately $3,277,000 in 1996 to $7,340,000
in 1997, representing 93% of total net sales for the year. Net sales to Hucom,
Inc. increased from $2,585,000 (79% of international sales) in 1996 to
$6,983,000 (95% of international sales) in 1997, and represented 88% of total
net sales for the year. Domestic sales volume decreased by approximately
$2,397,000 (80%) from 1996 to $584,000, as several large sales transactions
included in revenue for 1996 were not replaced in 1997.

Net sales for 1996 increased by approximately $1,585,000 (34%) from 1995 to
$6,257,840, due primarily to a significant increase in net sales to Hucom, Inc.
Total international sales increased 

                                       11
<PAGE>
 
$1,977,000 (152%) from approximately $1,300,000 in 1995 to $3,277,000 in 1996,
representing 52% of total net sales for the year. Net sales to Hucom, Inc.
increased from $1,126,000 (87% of international sales) in 1995 to $2,585,000
(79% of international sales) in 1996, and represented 41% of total net sales for
the year. Domestic sales volume decreased by approximately $393,000 (12%) from
1995 to $2,980,000, due to the cancellation of large contracts in 1996,
discussed in further detail below.

The increases in net sales for 1997 and 1996 include the effect of an allowance
against sales of $1,500,000 and $300,000 for 1997 and 1996, respectively, for
product returns and customer stock rotation. The Company does not generally
provide customers with a right of return at the date of sale; however, in
response to significant pressure from the marketplace, the Company has allowed
product returns in the past from certain customers as a marketing concession to
stimulate a positive impression of the Company and its products in the
marketplace. In addition, resellers have incorrectly anticipated the
configuration needed by end user equipment purchasers and have requested that
purchased but unused product be exchanged for the product needed to meet the end
user requirements. Further, certain end users have requested that they purchase
their initial products from the Company, instead of the reseller, which resulted
in credits issued to the resellers in the second half of 1996 and the first
quarter of 1997. As a result of all of these factors, the Company's net assets
include a reserve to provide for potential future return of product sold in the
current and previous periods. Additionally, in the fourth quarter 1997, the
Company recorded additional reserves for sales returns and allowances which may
occur as a result of the Company's shift in marketing focus to OEMs and
resellers who are more experienced in and are focused on specific vertical
markets that the Company believes are most appropriate for its products. The
reserve balances at December 31, 1997 and 1996, were approximately $695,000
($1,050,000 gross sales less the estimated value of the product to be returned)
and $150,000 ($300,000 gross sales less the estimated value of the product to be
returned).

In addition to the above allowance, in 1996 the Company issued significant
credits for sales returns in 1996, including (i) a $700,000 credit granted to a
customer in the third quarter of 1996 as a result of the customer significantly
modifying its network design after shipment by the Company, and (ii) a fourth
quarter sales return of $660,000 for a contract cancellation. The $660,000
fourth quarter 1996 sales return relates to the January 1997 cancellation of an
OEM contract by Sequent Computer Systems, Inc. (Sequent). After acceptance of
the Company's shipment, Sequent discovered an interoperability conflict between
Sequent's NUMA-Q technologies and the Fibre Channel technologies. The Company
agreed to accept the product return and to issue a credit for the previous sale.

A significant portion of the Company's revenues (41% in fiscal 1996 and 88% in
fiscal 1997) were generated by a single customer, Hucom, Inc. Product purchased
from the Company by Hucom is remarketed to end users. A significant portion of
Hucom's sales of Ancor's products in fiscal 1996 and fiscal 1997 have been to
one end user. In future periods, Hucom's sales of Ancor's products to this end
user are expected to be significantly less than in fiscal 1997. The Company's
business would be materially, adversely impacted if other end users are not
found to replace this level of business or if Hucom ceased doing business with
the Company unless and until additional resellers are established. The Company 
is supporting Hucom in their pursuit of additional customers and is actively 
pursuing a relationship with additional resellers and OEMs.

                                       12
<PAGE>
 
         GROSS PROFIT Gross profit in 1997 decreased to $1,933,340, or 24.4% of
sales, from $2,692,447, or 43.0% in 1996. Gross profit is impacted by the mix of
product sold within a period. In general, switches have higher margins than
adapter cards, and different switch types have different margins. Although a
higher mix of switches versus adapters was sold in 1997 than 1996, the higher
gross margins on the switches were offset by provisions made for excess and
obsolete inventory. Included in the cost of sales for 1997 is $1,000,000
provision for excess and obsolete inventory which had the effect of decreasing
gross profit as a percentage of sales by 12.6%. The Company made this provision
because changes in the Fibre Channel market have caused it to believe (i) its
inventory of certain host bus adapter cards exceeds current and future market
demands as customers transition to newer server and workstation platforms; and
(ii) its inventory of certain component parts used for earlier version switches
is made obsolete by newer generation of switches. For these same excess and
obsolescence reasons, when calculating the allowance for potential returns, the
Company reduced the estimated value of the product to be returned.

Gross margin percentage was 43.0% in 1996 versus 45.8% in 1995. Fourth quarter
1996 inventory obsolescence, scrap and rework charges caused a decrease of 4.9%
in gross profit as a percentage of sales which was offset by improved margins
from the switch vs. adapter mix of product sold.

         OPERATING EXPENSES The Company's operating expenses for 1997 were
$11,956,031 (150.9% of net sales), compared to $8,142,321 (130.1% of net sales)
in 1996. The Company believes that the level of expense incurred is appropriate
to address the opportunities available to it in the networking and Original
Equipment Manufacturer ("OEM") storage marketplaces. The increase in operating
expense is due to an increase in the cost for personnel, increased marketing and
sales expenses to prepare for the OEM storage market, and increased
depreciation. The number of employees at December 31, 1997, was approximately
10% greater than at December 31, 1996, resulting in personnel and related
expenses increasing approximately $2,017,000 as compared with 1996. Included in
this increase is a third quarter 1997 charge of $250,000, recorded to reflect
compensation owed to a former executive of the Company whose services were
discontinued. The amount of the accrual was based on the compensation payable to
such executive under the terms of the executive's employment contract.
Additionally, the Company's ongoing aggressive commitment to front end spending
for marketing and sales tactics resulted in advertising and marketing expense
increasing approximately $946,000 over 1996. Further, primarily due to
amortization of capitalized software development costs, depreciation and
amortization expense increased approximately $460,000 as compared with 1996.

Operating expenses for 1996 were $8,142,321 (130.1% of net sales) in 1996
compared to, $5,327,043 (114.0% of net sales) in 1995. The increase in operating
expenses in 1996 is attributable to an increase in the number of employees,
increased promotion costs, increased selling expenses as sales volume increases,
and increased development costs for the network products. Due to the addition of
sales and management personnel resulting from the Company's increased focus on
the marketing of its Fibre Channel products, in addition to $1.8 million of
non-engineering salaries, the Company expended $368,000 in employee recruitment,
and $755,000 on outfitting marketing demonstration facilities, development of
advertising and promotion campaigns and costs to develop the worldwide Company
channels of distribution. In 

                                       13
<PAGE>
 
1995, such expenditures amounted to $1.3 million, $61,000 and $354,000
respectively. Development costs for the network products are primarily the
employee related cost for design, prototype development and testing. Salaries
and contracted labor incurred were approximately $2,492,000 in 1996 and
$1,740,000 in 1995. Engineering expenditures increased in 1996, as the next
generation of Fibre Channel switching products is being developed. The Company
expects that spending for research and development will increase in absolute
dollars but may continue to vary as a percentage of net sales.

         OTHER INCOME (EXPENSE) Interest expense decreased in 1997 to $18,717
from $63,896 in 1996 and $153,047 in 1995 as a result of the Company's repayment
of a $1.5 million note payable in June 1996. Interest income of $218,408 and
$224,086 in 1997 and 1996, respectively, was earned from the investment of the
net proceeds of preferred stock offerings occurring in March of each year.

         NET LOSS The Company's net loss increased to approximately $9,823,000,
or $0.93 per share in 1997, compared to $5,290,000, or $0.60 per share in 1996,
and a net loss of $3,269,000, or $0.44 per share in 1995. In addition to the
increased operating loss, the net losses of $0.93 and $0.60 per share for 1997
and 1996, respectively, include an adjustment of 3 cents loss per share in each
year to give effect to the 8% accretion benefit earned by the Series A Preferred
shareholders for both years, and 5% accretion benefit earned by the Series B
Preferred shareholders for 1997, from the date of issue to the date of
conversion or to the end of the reporting period, whichever is earlier. Such
accretion amounted to $345,000 for 1997 and $331,000 for 1996.


LIQUIDITY AND CAPITAL RESOURCES

The Company's principal source of liquidity at December 31, 1997 was cash, cash
equivalents and short term investments of approximately $2,001,000. This
compares to approximately $1,511,000 at year end 1996, and to approximately
$1,552,000 at year end 1995. Net cash used in operating activities of
approximately $6,057,000 in 1997 decreased from approximately $8,058,000 in
1996, but increased from approximately $3,804,000 in 1995. The decrease was due
to collections of accounts receivable, offset by the operating loss, net
payments to vendors and inventory purchases in anticipation of future sales. The
increase in 1996 was due to the net loss, as well as increases in both accounts
receivable and inventories, which, in turn, were the result of increased sales
and increased stocking in anticipation of sales growth in 1997. The 120.5%
increase in receivables in 1996 was primarily attributable to (i) a $1,485,000
sale to Hucom, Inc. in the last week of December 1996, and (ii) extended terms
granted to customers as an inducement to utilize the Company's technology.
Additionally, customers are also encouraged to install the Company's products
through a free evaluation period lasting over a number of months. This equipment
remains the property of the Company, thus increasing inventory, unless the
evaluation is converted into a sale.

Cash flow used in investing activities totaled approximately $527,000 in 1997,
as compared with approximately $2,536,000 in 1996 and approximately $601,000 in
1995. Capital expenditures in 1997 included upgrades to and additions of desktop
systems, development of salable software, 

                                       14
<PAGE>
 
and continued internal construction of internally-built testing and tooling
equipment. Major capital expenditures in 1996 included upgrades and additions to
facilities, development of a new worldwide management information system,
upgrades of desktop systems, development of salable software and
internally-built testing and tooling equipment for the next generation of Fibre
Channel switching products. Investments in 1995 included design and expansion of
the Company's own Fibre Channel research network of engineering tools and
software.

Since its inception, the Company has financed its operations and met its capital
expenditure requirements from private and public sales of capital stock and from
borrowing. In March 1997, the Company completed a private placement transaction
by selling 855 shares of Series B Preferred Stock which provided net proceeds of
approximately $7,948,000. Approximately 440 of these preferred shares remained
unconverted as of December 31, 1997. In conjunction with the transaction, the
placement agent was granted a five year warrant to purchase 105,556 shares of
common stock at $4.86 per share. Approximately 90,000 of these warrants remain
unexercised as of December 31, 1997. In addition, the investors have a right to
receive warrants to purchase common stock equal to 20% of their original
investment not converted to common stock as of March 24, 1998, divided by the
conversion price then in effect, with an exercise price equal to 115% of the
average closing bid price for five days ending on the one year anniversary date.
In 1996, the Company completed an off-shore private placement of 1,030 shares of
convertible preferred stock with a stated value of $10,000 per share, resulting
in net proceeds to the Company of approximately $9,544,000 after deducting
selling commissions and offering expenses. Additionally, during 1996, certain
warrant holders elected to convert those warrants to 683,728 shares of common
stock, resulting in net proceeds to the Company of approximately $2,518,000,
after deducting expenses of issuance, including the cost of registering the
shares pursuant to registration rights held by such warrant holders. The
proceeds of these 1996 equity transactions were used to repay $1,500,000 of
indebtedness to IBM due in June 1996, and were used to fund sales and marketing
efforts to accelerate penetration of the Company's products into OEM, system
integrator and reseller accounts, to fund research and development efforts
needed to maintain technological leadership and broaden the Company's product
line, and for working capital. In 1995, the Company completed two private
placements resulting in net proceeds to the Company of approximately $4.7
million.

Management believes that the Company must obtain additional capital to fund the
continued growth in net sales and to fund the Company's working capital
requirements, operating activities, and future capital expenditures until
profitability is achieved. On February 19, 1998, the Company completed a private
placement of $11,000,000 (1100 shares) of Series C Preferred Stock which
resulted in net proceeds of approximately $10,331,000. The Securities were
privately sold to accredited investors by Dunwoody Brokerage Services, Inc.
("Dunwoody"). As consideration for its services, Dunwoody received a fee equal
to 6% of the gross proceeds, plus a five-year warrant to purchase 90,644 shares
of Common Stock at a price per share equal to $7.281. The securities were sold
pursuant to Rule 506 under Regulation D.

The Series C Preferred Stock is convertible into Common Stock of the Company,
subject to certain restrictions, at a variable conversion rate equal to the
lower of (i) the Maximum Conversion Price (as defined below) or (ii) the average
of the three lowest closing bid prices of the Common Stock during the applicable
pricing Period (as defined below). The maximum 

                                       15
<PAGE>
 
Conversion price is equal to the greater of (i) $9.00 per share and (ii) a price
which is set at a defined premium over the average closing bid price of the
Common Stock for the 30 trading days following February 19, 1998. The applicable
Pricing Period is a number of consecutive trading days immediately preceding the
date of conversion of the Series C Preferred Stock initially equal to twelve and
increased by one additional consecutive trading day for each full calendar month
which has elapsed since February 19, 1998.

The Company believes that the capital received from the private placement will
provide adequate liquidity to fund growth, operations and capital expenditures
for 1998.

         SHAREHOLDER LITIGATION. The Company, along with Stephen O'Hara, Lee B.
Lewis and Dale Showers, has been named as a defendant in a securities action
captioned Richard Radman and Sol Rosenthal v. Ancor Communications, Inc., et al.
filed in the United States District Court for the District of Minnesota on July
24, 1997. The lawsuit alleges that the Company violated sections 10(b) and 20(a)
of the Securities Exchange Act of 1934 when it allegedly made misleading public
disclosures relating to the Company's contract with Sequent Computer Systems,
Inc. and the Company's financial results, and seeks compensatory losses in an
undetermined amount. The lawsuit is also seeking class-action status. The
lawsuit was amended on December 1, 1997, by the plaintiffs after the Company
moved to dismiss the initial complaint. The amended complaint alleges the same
claims as the initial complaint. On March 16, 1998 the Company filed its motion
to dismiss the amended complaint. This action is in its preliminary stages and
discovery is currently stayed. The Company believes that the lawsuit is without
merit and intends to defend it vigorously. However, there is no assurance that
any judgment, order or decree against the Company arising out of this action
will not have a material adverse effect on the Company or its business. The
Company is unable to determine at this time if there will be a material adverse
outcome. No provision has been made for any loss that may occur as a result of
an adverse outcome of the suit. As of March 28, 1998, the Company had incurred
approximately $67,000 in legal expenses related to the suit.

         YEAR 2000 ISSUE. Per SEC Staff Legal Bulletin No. 5 issued October 8,
1997, revised January 12, 1998, the Company has investigated the impact of the
Year 2000 ("Y2K") issue on its information systems. During fiscal 1996 the
Company purchased from a world-wide supplier and developer of information
systems an enterprise-wide information system. The developer of this information
system has provided its clients written assurance that the system will correctly
function across the year 2000, as verified by previous system tests and year
2000 certification by the International Technology Association of America.
Additionally, the Company's products, including software, are not date sensitive
as to functionality. Therefore, Y2K is not expected to have a material effect on
the Company's financial position, operations or cash flow.


SAFE HARBOR CAUTIONARY STATEMENT

Statements made in this Management's Discussion and Analysis that are not
historical in nature, including statements regarding the level of future
revenues and expenses, are "forward-looking statements" as defined in the
Private Securities Litigation Reform Act of 1995 and are subject to risks and
uncertainties. Factors that may affect the Company's future performance and
results 

                                       16
<PAGE>
 
are set forth in the Company's filings with the Securities and Exchange
Commission and include the level of market acceptance of Fibre Channel
technology and the Company's products, the Company's ability to retain current
customers and attract new customers, the Company's ability to compete with
others providing Fibre Channel technology, competition from existing and new
technologies, the Company's ability to manage growth, the Company's ability to
attract and retain qualified personnel and the ability of the Company's products
to interoperate with products manufactured by others.


ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKS

         Not applicable.


ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The following financial statements are included as a separate section following
the signature page to this Form 10-K:

                          INDEX TO FINANCIAL STATEMENTS
                                                                       PAGE
                                                                       ----
Independent Auditor's Report for the years ended
     December 31, 1997, 1996,  and 1995...........................      F-1

Balance Sheets as of December 31, 1997 and 1996...................      F-2

Statements of Operation's for the years ended
     December 31, 1997, 1996 and 1995.............................      F-4

Statements of Shareholders' Equity/Deficit for the years ended
     December  31, 1997, 1996 and 1995............................      F-5

Statements of Cash Flows for the years ended
     December 31, 1997, 1996 and 1995.............................      F-7

Notes to Financial Statements.....................................  F-8 to F-17

Schedule II - Valuation and Qualifying Accounts...................     F-18


ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE

         None.

                                       17
<PAGE>
 
                                    PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS, PROMOTERS AND CONTROL PERSONS:
         COMPLIANCE WITH SECTION 16(A) OF THE EXCHANGE ACT

The information set forth under the heading "ELECTION OF DIRECTORS," "EXECUTIVE
OFFICERS" and "SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE" in the
Company's definitive proxy statement for its 1998 Annual Meeting of Shareholders
to be filed with the Securities and Exchange Commission on or before April 30,
1998 (the "Proxy Statement") is hereby incorporated by reference.


ITEM 11. EXECUTIVE COMPENSATION

The information set forth under the heading "EXECUTIVE COMPENSATION" in the
Proxy Statement referred to in Item 10 above is hereby incorporated by
reference.


ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The information set forth under the heading "PRINCIPAL SHAREHOLDERS" in the
Proxy Statement referred to in Item 10 above is hereby incorporated by
reference.


ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

The information set forth under the heading "CERTAIN TRANSACTIONS" in the Proxy
Statement referred to in Item 10 above is hereby incorporated by reference.


                                     PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENTS, SCHEDULES AND REPORTS ON FORM 8-K

(a.) The following documents are filed as part of this Annual Report on 
     Form 10-K

     1.   Financial Statements: The financial statements filed as part of this
          report are listed in the "Index to Financial Statements" on Page F-1
          hereof.

     2.   Financial Statement Schedules. The financial statement schedule filed
          as part of this report is listed in the "Index to Financial
          Statements" on Page F-1 hereof.

                  None

     3.   Exhibits

                                       18
<PAGE>
 
     3.1(a) Second Amended and Restated Articles of Incorporation of the
            Company.

     3.2(a) Amended Bylaws of the Company.

     4.1(a) a Loan and Warrant Purchase Agreement, dated as of June 24, 1992,
            between Ancor Communications, Incorporated and International 
            Business Machines Incorporated.

     4.2(a) a Agreement and Amendment to Loan and Warrant Purchase Agreement,
            dated March 10, 1994, by and among Ancor Communications, 
            Incorporated, International Business Machines Corporation and IBM 
            Credit Corporation.

     4.3(b) Second Amendment to Loan and Warrant Purchase Agreement dated April
            25, 1994, by and among Ancor Communications, Incorporated,
            International Business Machines Corporation and IBM Credit
            Corporation.
 
     4.4(a) a Shareholders Agreement, dated as of June 24, 1992, among Ancor
            Communications, Incorporated, International Business Machines
            Incorporated and the shareholders of the Company named on the
            signature page thereto.

     4.5(c) Representative's Warrant.

     4.6(a) Form of Warrant issued November 8, 1993.

     4.7(f) Form of Warrant issued April 28, 1995.

     4.8(g) Form of Warrant issued to Andcor Human Resources on August 28, 1995.

     4.9(g) Form of Warrant issued to John G. Kinnard & Company on October 23,
            1995.

     4.10(h) Certificate of Designation of Series A Preferred Stock.

     4.11(h) Form of Warrant issued to Swartz Investments, Inc. on March 7,
             1996.

     4.12(j) Form of Warrant issued to Dunwoody Brokerage Services, Inc. on
             March 24, 1997.

                                       19
<PAGE>
 
     4.13(j)  Form of Warrant to be issued to Purchasers of the Company's Series
              B Preferred Stock.

     4.14(j)  Certificate of Designation of Series B Preferred Stock.

     4.15(l)  Certificate of Designation of Series C Preferred Stock.

     4.16(m)  Form of Warrant issued to Dunwoody Brokerage Services, Inc. on
              February 19, 1998.

     10.(1)   [Reserved.]

     *10.2(a) Ancor Communications, Incorporated 1990 Stock Option Plan.

     *10.3(a) Ancor Communications, Incorporated 1994 Long-Term Incentive and
              Stock Option Plan.

     *10.4(a) Employment Agreement, dated January 1, 1994, between Ancor
              Communications, Incorporated and Dale C. Showers.

     *10.5(a) Employment Agreement, dated January 1, 1994, between Ancor
              Communications, Incorporated and Stephen C. O'Hara.

     10.6     [Reserved.]

     10.7     [Reserved.]

     10.8(a)  Sublease, dated March 29, 1988, by and between Anderson Cornelius
              and Unisys Corporation, formerly known as Burroughs Corporation.

     10.9(a)  Sublease, Amendment Agreement, dated March 8, 1989, by and between
              Anderson Cornelius and Unisys Corporation, formerly known as 
              Burroughs Corporation.

     10.10(a) Sublease, Amendment Agreement, dated August 31, 1992, by and
              between the Company and Unisys Corporation, formerly known as
              Burroughs Corporation.

     10.11(a) Development and License Agreement between the Company and
              International Business Machines Corporation dated June 4, 1992, as
              amended on February 8, 1993, May 10, 1993 and October 5, 1993 (a

                                       20
<PAGE>
 
               request for confidentiality of certain portions of this agreement
               has been granted).

     10.12     [Reserved.]

    *10.13(d)  Amendment No. 1 to Employment Agreement dated November 4, 1994
               between the Company and Dale C. Showers amending the Employment
               Agreement dated January 1, 1994 between the Company and Mr. 
               Showers filed as exhibit No 10.4

     10.14     [Reserved.]

     10.15     [Reserved.]

     10.16     [Reserved.]

    *10.17(g)  Ancor Communications, Inc. 1995 Employee Stock Purchase Plan.

    *10.18(g)  Ancor Communications, Inc. Non-Employee Director Stock Option
               Plan.

     10.19(h)  Form of Subscription Agreement between the Company and Purchasers
               of the Company's Series A Preferred Stock (March 1996).

     10.20(h)  Registration Rights Agreement dated March 7, 1996 between the
               Company, Swartz Investments, Inc. and Purchasers of the Company's
               Series A Preferred Stock.

     10.21(h)  Letter Agreement between the Company and Swartz Investments, Inc.
               dated February 1996.

    *10.22(i)  Separation and General Release Agreement between the Company and
               William F. Walker.

     10.23(j)  Form of Subscription Agreement between the Company and Purchasers
               of the Company's Series B Preferred Stock (March 1997).

     10.24(j)  Registration Rights Agreement dated March 24, 1997 between the
               Company, Swartz Investments, Inc. and Purchasers of the Company's
               Series B Preferred Stock.

     *10.25(k) Letter Employment Agreement with Kenneth E. Hendrickson dated
               July 25, 1997.

                                       21
<PAGE>
 
    *10.26(k) Letter Employment Agreement with Steven E. Snyder dated September
              23, 1997.

     10.27(l) Form of Subscription Agreement, dated as of February 19, 1998,
              between Ancor Communications, Incorporated and each purchaser of
              Series C Preferred Stock.

     10.28(l) Registration Rights Agreement, dated as of February 19, 1998, by
              and between Ancor Communications, Incorporated, the placement
              agent and each purchaser of Series C Preferred Stock.

    *10.29(m) Termination of Employment Agreement dated August 29, 1997,
              between the Company and Dale C. Showers.

     10.30(m) Sublease, Amendment Agreement, dated February 11, 1998, by and
              between the Company and Unisys Corporation, formerly known as
              Burroughs Corporation.

    *10.31(m) Separation and General Release Agreement between the Company and
              Lee B. Lewis.

    *10.32(m) Amendments to Ancor Communications, Inc. Non-Employee Director
              Stock Option Plan filed as exhibit 10.18.

     23.1(m)  Consent of McGladrey & Pullen, LLP.

     24.1(m)  Powers of Attorney (set forth on the Signature Page hereof).

     27.1(m)  Financial Data Schedule.

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

*    Indicates management contract or compensatory plan or agreement.

(a)  Incorporated by reference to the Company's Registration Statement on form
     SB-2 filed March 11, 1994.

(b)  Incorporated by reference to Amendment No. 2 to the Company's Registration
     Statement on form SB-2 Filed April 28, 1994.

                                       22
<PAGE>
 
(c)  Incorporation by reference to the Company's Form 10-QSB filed for the
     quarterly period ended March 31, 1994.

(d)  Incorporated by reference to the Company's Form 10-QSB filed for the
     quarterly period ended September 30, 1994.

(e)  Incorporated by reference to the Company's Form 10-KSB filed for the fiscal
     year ended December 31, 1994.

(f)  Incorporated by reference to the Company's form 10-QSB filed for the
     quarterly period ended March 31, 1995.

(g)  Incorporated by reference to the Company's form 10-QSB filed for the
     quarterly period ended September 30, 1995.

(h)  Incorporated by reference to the Company's Form 10-KSB filed for the fiscal
     year ended December 31, 1995.

(i)  Incorporated by reference to the Company's form 10-QSB filed for the
     quarterly period ended March 31, 1996.

(j)  Incorporated by reference to the Company's form 10-Q filed for the
     quarterly period ended March 31, 1997.

(k)  Incorporated by reference to the Company's form 10-Q filed for the
     quarterly period ended September 30, 1997.

(l)  Incorporated by reference to the Company's form 8-K filed February 19,
     1998.

(m)  Included herewith.



(b.) Reports on Form 8-K 
          None.

(c.) See subitem (a.) above.

(d.) See subitem (a.) above.

                                       23
<PAGE>
 
                                   SIGNATURES

In accordance with Section 13 or 15(d) of the Exchange Act, the registrant
caused this report to be signed on its behalf by the undersigned, thereunto duly
authorized.

                                    ANCOR COMMUNICATIONS, INCORPORATED

                                    By /S/ Kenneth E. Hendrickson
                                       ----------------------------------
                                       Kenneth E. Hendrickson
                                       Chairman of the Board & CEO

Dated:  March 31, 1998
        --------------------------------

         In accordance with the Exchange Act, this report has been signed below
by the following persons on behalf of the registrant and in the capacities and
on the dates indicated. Each person whose signature to this report on Form 10-K
appears below hereby constitutes and appoints Kenneth E. Hendrickson and Steven
E. Snyder, and each of them, as his true and lawful attorney-in-fact and agent,
with full power of substitution, to sign on his behalf individually and in the
capacity state below and to perform any acts necessary to be done in order to
file all amendments to this report on Form 10-K, and any and all instruments or
documents filed as part of or in connection with this report on Form10-K or the
amendments thereto and each of the undersigned does hereby ratify and confirm
all that said attorney-in-fact and agent, or his substitutes, shall do or cause
to be done by virtue hereof.

           NAME                            TITLE                    DATE
           ----                            -----                    ----
/S/KENNETH E. HENDRICKSON      Chairman, Director and CEO      March 31, 1998
- ---------------------------    (principal executive officer)
Kenneth E. Hendrickson         


/S/STEVEN E. SNYDER            Chief Financial Officer         March 31, 1998
- ---------------------------    (principal financial officer)
Steven E. Snyder                     

/S/AMYL AHOLA                  Director                        March 31, 1998
- ---------------------------
Amyl Ahola

/S/GERALD M. BESTLER           Director                        March 31, 1998
- ---------------------------
Gerald M. Bestler

/S/JOHN F. CARLSON             Director                        March 31, 1998
- ---------------------------
John F. Carlson

/S/THOMAS F. HUNT, JR.         Director                        March 31, 1998
- ---------------------------
Thomas F. Hunt, Jr.

/S/PAUL LIDSKY                 Director                        March 31, 1998
- ---------------------------
Paul Lidsky

                                       24
<PAGE>
 
                                    CONTENTS

- -------------------------------------------------------------------------------
INDEPENDENT AUDITOR'S REPORT                                       F-1
- -------------------------------------------------------------------------------
 
FINANCIAL STATEMENTS
 
 Balance sheets                                              F-2 - F-3
 
 Statements of operations                                          F-4
 
 Statements of shareholders' equity                          F-5 - F-6
 
 Statements of cash flows                                          F-7
 
 Notes to financial statements                              F-8 - F-17
 
 Schedule II--Valuation and qualifying accounts                   F-18
- -------------------------------------------------------------------------------
<PAGE>
 
                          INDEPENDENT AUDITOR'S REPORT

To the Board of Directors
Ancor Communications, Incorporated
Minnetonka, Minnesota

We have audited the accompanying balance sheets of Ancor Communications,
Incorporated as of December  31, 1997 and 1996, and the related statements of
operations, shareholders' equity, and cash flows for each of the three years in
the period ended December  31, 1997.  These financial statements are the
responsibility of the Company's management.  Our responsibility is to express an
opinion on these financial statements based on our audits.

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

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of Ancor Communications,
Incorporated as of December  31, 1997 and 1996, and the results of its
operations and its cash flows for each of the three years in the period ended
December  31, 1997, in conformity with generally accepted accounting principles.

Our audit of the financial statements of Ancor Communications, Incorporated
included Schedule II, contained herein, for the year ended December 31, 1997.
In our opinion, such schedule represents fairly the information required to be
set forth therein, in conformity with generally accepted accounting principles.

                                            McGLADREY & PULLEN, LLP

Minneapolis, Minnesota
February 19, 1998

                                      F-1
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

BALANCE SHEETS

<TABLE>
<CAPTION>
                                                                                  December 31
                                                                         ----------------------------
               ASSETS                                                        1997            1996
- -----------------------------------------------------------------------------------------------------
<S>                                                                      <C>              <C>
 Current Assets
     Cash and cash equivalents                                            $ 2,001,404     $   507,041
     Short-term investments                                                         0       1,003,530
     Accounts receivable, less allowances of $804,000 and
        $214,000, respectively (Note 5)                                     1,499,634       4,019,000
     Inventories (Note 3)                                                   2,493,722       2,695,961
     Prepaid expenses and other current assets                                154,983         336,734
                                                                          -----------     -----------
                   Total current assets                                     6,149,743       8,562,266
                                                                          -----------     -----------


    Equipment, at cost (Note 4)                                             5,875,424       4,681,585
      Less accumulated depreciation                                         2,601,896       1,843,469
                                                                          -----------     -----------
                                                                            3,273,528       2,838,116
                                                                          -----------     -----------

Other Assets
     Patents, prepaid royalties, and other assets, net of accumulated
        amortization (Note 8)                                                 269,190         247,754
     Capitalized software development costs, less accumulated
        amortization of $342,900 in 1997 and $74,720 in 1996                  471,043         614,188
                                                                          -----------     -----------
                                                                              740,233         861,942
                                                                          -----------     -----------
                                                                          $10,163,504     $12,262,324
                                                                          ===========     ===========
</TABLE>

 See Notes to Financial Statements.

                                      F-2
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                  December 31
                                                                       ------------------------------
LIABILITIES AND SHAREHOLDERS' EQUITY                                       1997              1996
- -----------------------------------------------------------------------------------------------------
<S>                                                                    <C>               <C>
Current Liabilities
     Current maturities of long-term debt                              $     65,145      $     61,923
     Accounts payable                                                       963,321         1,752,258
     Accrued compensation and benefits                                      477,464           259,800
     Other accrued expenses                                                 211,526           104,264
                                                                       ------------      ------------
                   Total current liabilities                              1,717,456         2,178,245
                                                                       ------------      ------------
Long-Term Debt, less current maturities (Note 4)                            129,702           177,382
                                                                       ------------      ------------

Commitments and Contingencies (Notes 8 and 9)

Shareholders' Equity (Notes 2 and 7)
     Preferred stock, Series A, $0.01 par value, liquidation value
        of $481,000                                                               1                 2
     Preferred stock, Series B, $0.01 par value, liquidation value
        of $4,570,000                                                             4                 0
     Common stock, par value $0.01; authorized 20,000,000 shares            117,780           104,077
     Additional paid-in capital                                          35,290,763        27,071,820
     Accumulated deficit                                                (27,092,202)      (17,269,202)
                                                                       ------------      ------------
                                                                          8,316,346         9,906,697
                                                                       ------------      ------------
                                                                       $ 10,163,504      $ 12,262,324
                                                                       ============      ============
</TABLE>

                                      F-3
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                            Years Ended December 31
                                                ----------------------------------------------
                                                     1997             1996             1995
- ----------------------------------------------------------------------------------------------
<S>                                             <C>               <C>              <C>
Net sales (Notes 5 and 10)                      $  7,924,001      $ 6,257,840      $ 4,672,951
Cost of goods sold                                 5,990,661        3,565,393        2,532,622
                                                ------------      -----------      -----------
                   Gross profit                    1,933,340        2,692,447        2,140,329
                                                ------------      -----------      -----------

Operating expenses:
     Selling, general and administrative           7,684,638        4,944,166        2,784,636
     Research and development                      4,271,393        3,198,155        2,542,407
                                                ------------      -----------      -----------
                   Total operating expenses       11,956,031        8,142,321        5,327,043
                                                ------------      -----------      -----------

                   Operating loss                (10,022,691)      (5,449,874)      (3,186,714)

Nonoperating income (expense):
     Interest expense                                (18,717)         (63,896)        (153,047)
     Other, primarily interest income                218,408          224,086           70,846
                                                ------------      -----------      -----------
                   Net loss                     $ (9,823,000)     $(5,289,684)     $(3,268,915)
                                                ============      ===========      ===========

Basic and diluted net loss per share            $      (0.93)     $     (0.60)     $     (0.44)
Weighted-average common shares outstanding        10,963,416        9,351,060        7,449,182
</TABLE>

See Notes to Financial Statements.

                                      F-4
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

STATEMENTS OF SHAREHOLDERS' EQUITY
Years Ended December 31, 1997, 1996, and 1995


<TABLE>
<CAPTION>
                                                                               Preferred Stock
                                                          -----------------------------------------------------
                                                                   Series A                      Series B
                                                          -------------------------     -----------------------
                                                             Shares        Amount          Shares       Amount
- ---------------------------------------------------------------------------------------------------------------
<S>                                                          <C>          <C>              <C>          <C> 
Balance, December 31, 1994                                      0         $    0              0         $    0
     Exercise of stock options                                  0              0              0              0
     Employee stock purchases                                   0              0              0              0
     Sale of common stock through private placement
        (net of issuance costs of $203,247)                     0              0              0              0
     Sale of common stock through private placement
        (net of issuance costs of $194,669)                     0              0              0              0
     Net loss                                                   0              0              0              0
                                                          -----------------------------------------------------

Balance, December 31, 1995                                      0              0              0              0
     Sale of Series A Preferred Stock (net of
         issuance costs of $756,466)                        1,030             10              0              0
     Conversions of Series A Preferred Stock                 (856)            (8)             0              0
     Exercise of stock options and warrants (net of
        issuance costs of $33,915)                              0              0              0              0
     Employee stock purchases                                   0              0              0              0
     Net loss                                                   0              0              0              0
                                                          -----------------------------------------------------
Balance, December 31, 1996                                    174              2              0              0
     Sale of Series B Preferred Stock (net of
         issuance costs of $602,253)                            0              0            855              8
     Conversions of Series A Preferred Stock                 (132)            (1)             0              0
     Conversions of Series B Preferred Stock                    0              0           (415)            (4)
     Exercise of stock options and warrants                     0              0              0              0
     Employee stock purchases                                   0              0              0              0
     Net loss                                                   0              0              0              0
                                                          -----------------------------------------------------
Balance, December 31, 1997                                     42         $    1            440         $    4
                                                          =====================================================
</TABLE>

See Notes to Financial Statements.

                                      F-5
<PAGE>
 
<TABLE>
<CAPTION>

       Common Stock                           Additional
- -------------------------      Paid-In       Accumulated
     Shares       Amount       Capital         Deficit         Total
- ------------------------------------------------------------------------
<S>            <C>          <C>             <C>             <C>         
   6,743,499   $   67,435   $  9,942,037    $ (8,710,603)   $  1,298,869
      19,035          190         29,734               0          29,924
         892            9          8,073               0           8,082

     845,000        8,450      2,217,678               0       2,226,128

     665,000        6,650      2,458,681               0       2,465,331
           0            0              0      (3,268,915)     (3,268,915)
- ------------------------------------------------------------------------
   8,273,426       82,734     14,656,203     (11,979,518)      2,759,419

           0            0      9,543,524               0       9,543,534
   1,352,494       13,525        (13,517)              0               0

     773,519        7,735      2,832,061               0       2,839,796
       8,248           83         53,549               0          53,632
           0            0              0      (5,289,684)     (5,289,684)
- ------------------------------------------------------------------------
  10,407,687      104,077     27,071,820     (17,269,202)      9,906,697

           0            0      7,947,739               0       7,947,747
     407,444        4,074         (4,073)              0               0
     876,383        8,764         (8,760)              0               0
      74,775          748        222,925               0         223,673
      11,717          117         61,112               0          61,229
           0            0              0      (9,823,000)     (9,823,000)
- ------------------------------------------------------------------------
  11,778,006   $  117,780   $ 35,290,763    $(27,092,202)   $  8,316,346
========================================================================
</TABLE>

                                      F-6
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                                        Years Ended December 31
                                                            ------------------------------------------------
                                                                1997              1996             1995
- ------------------------------------------------------------------------------------------------------------
<S>                                                         <C>              <C>                <C>
Cash Flows From Operating Activities
   Net loss                                                 $ (9,823,000)     $ (5,289,684)     $(3,268,915)
   Adjustments to reconcile net loss to net
      cash used in operating activities:
      Depreciation and amortization                            1,077,796           617,419          234,333
      Provision for receivables allowances                     1,028,000           164,000           50,000
      Provision for obsolete inventories                       1,045,000            50,000                0
      Write-down of equipment                                    248,953                 0                0
      Changes in assets and liabilities:
        Accounts receivable                                    1,491,366        (2,360,117)        (880,778)
        Inventories                                             (842,761)       (1,926,201)           9,709
        Prepaid expenses and other                               181,751          (155,886)         (73,519)
        Accounts payable and accrued expenses                   (464,011)          842,369          125,191
                                                            ------------------------------------------------
             Net cash used in operating activities            (6,056,906)       (8,058,100)      (3,803,979)
                                                            ------------------------------------------------

Cash Flows From Investing Activities
   Purchases of equipment                                     (1,334,183)       (2,202,259)        (403,324)
   Purchase of short-term investments                         (9,469,670)       (1,003,530)      (3,063,206)
   Sale of short-term investments                             10,473,200         1,300,178        2,998,301
   Capitalized software development costs                       (125,035)         (577,488)        (111,420)
   Other, net                                                    (70,934)          (52,569)         (21,028)
                                                            ------------------------------------------------
             Net cash used in investing activities              (526,622)       (2,535,668)        (600,677)
                                                            ------------------------------------------------

Cash Flows From Financing Activities
   Net proceeds from sales of common
     and preferred stock                                       8,008,976         9,597,166        4,699,541
   Proceeds from exercise of options and warrants                223,673         2,839,796           29,924
   Principal payments on long-term debt                         (154,758)       (1,587,628)        (356,482)
   Collection of notes receivable from the
     issuance of common stock                                          0                 0          240,000
   Payment of debt financing and deferred offering fees                0                 0          (50,000)
                                                            ------------------------------------------------
             Net cash provided by financing activities         8,077,891        10,849,334        4,562,983
                                                            ------------------------------------------------

             Increase in cash                                  1,494,363           255,566          158,327

Cash
   Beginning                                                     507,041           251,475           93,148
                                                            ------------------------------------------------
   Ending                                                   $  2,001,404      $    507,041      $   251,475
                                                            ================================================
Supplemental Cash Flow Disclosures
   Cash payments for interest                               $     18,717      $     63,896      $   119,755
                                                            ================================================
Supplemental Schedule of Noncash Investing
   and Financing Activities Equipment acquired
   under capital lease                                      $    110,300      $     87,280      $   100,235
                                                            ================================================
</TABLE>

See Notes to Financial Statements.

                                      F-7
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

NOTE 1. NATURE OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES

NATURE OF BUSINESS: Ancor Communications, Incorporated (the Company) operates in
one business segment, the development and marketing of various products for the
communications market. The Company's products are components in fiber-optic
communications networks. The Company also previously designed, produced, and
marketed system components used in United States military communications
systems. Sales are made to customers throughout the United States, in Japan, and
in certain other foreign countries. Credit, including foreign credit, is
determined on an individual customer basis.

ACCOUNTING ESTIMATES: The preparation of the financial statements in conformity
with generally accepted accounting principles requires management to make
estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements, and the reported amounts of revenues and expenses
during the reporting period. Actual results could differ from those estimates.
See the accounting policies for revenue recognition and inventory, as well as
Note 10, for the estimation process relating to sales returns and allowances and
inventory obsolescence. Also, see Note 9 for management's estimation process
relating to a pending lawsuit.

REVENUE RECOGNITION: Revenue on firm customer orders is generally recognized at
the time product is shipped or services are provided. Product shipped for
customer evaluation is recorded as consigned inventory. In certain circumstances
during 1996 and 1995, revenue was recognized upon completion of production under
specific contractual arrangements for billing and delivery. The Company provides
an allowance for product returns based on management's periodic assessment of
the need for such an allowance.

CASH AND CASH EQUIVALENTS: For purposes of reporting cash flows, the Company
considers all unrestricted cash and any U.S. Treasury bills, commercial paper,
and money market funds with an original maturity of three months or less to be
cash equivalents. The Company maintains its cash in bank deposit and money
market accounts, which, at times, exceed federally insured limits. The Company
has not experienced any losses in such accounts.

SHORT-TERM INVESTMENTS: Short-term investments consisted primarily of
investments in money market funds and in U.S. government obligations (primarily
U.S. Treasury bills). Short-term investments are recorded at cost (which
approximates market).

INVENTORIES: Inventories are stated at the lower of cost (first-in, first-out
method) or market. The Company has recorded a reserve for potential obsolete
inventory based primarily on management's estimate of future sales levels of
products and related components in inventory (see Note 10).

DEPRECIATION AND AMORTIZATION: Equipment purchases are stated at cost.
Depreciation is computed by the straight-line method over estimated useful lives
of five and seven years. Intangible assets consist principally of patents,
prepaid royalties, and cost in excess of net assets acquired. Amortization is
computed by the straight-line method over estimated useful lives ranging from 5
to 15 years.

                                      F-8
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

NOTE 1. NATURE OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

The Company reviews its long-lived assets periodically to determine potential
impairment by comparing the carrying value of the long-lived assets with the
estimated future net undiscounted cash flows expected to result from the use of
the assets, including cash flows from disposition. Should the sum of the
expected future net cash flows be less than the carrying value, the Company
would recognize an impairment loss at that date. An impairment loss would be
measured by comparing the amount by which the carrying value exceeds the fair
value (estimated discounted future cash flows) of the long-lived assets. In
connection with such a review, during 1997 management wrote down certain
equipment resulting in a loss of approximately $249,000.

FAIR VALUE OF FINANCIAL INSTRUMENTS: The financial statements include the
following financial instruments: cash and cash equivalents, short-term
investments, and long-term debt. No separate comparison of fair values versus
carrying values is presented for the aforementioned financial instruments since
their fair values are not significantly different than their balance sheet
carrying amounts.

INCOME TAXES: Deferred taxes are provided on an asset and liability method
whereby deferred tax assets are recognized for deductible temporary differences
and operating loss or tax credit carryforwards and deferred tax liabilities are
recognized for taxable temporary differences. Temporary differences are the
differences between the amounts of assets and liabilities recorded for income
tax and financial reporting purposes. Deferred tax assets are reduced by a
valuation allowance when management determines that it is more likely than not
that some portion or all of the deferred tax assets and liabilities will not be
realized. Deferred tax assets and liabilities are adjusted for the effects of
changes in tax laws and rates on the date of enactment. Income tax expense or
benefit would be the tax payable or refundable for the year plus or minus the
change in deferred tax assets and liabilities during the year.

CAPITALIZED SOFTWARE DEVELOPMENT COSTS: The Company capitalizes software
development costs incurred after the establishment of technological feasibility.
These costs are amortized to cost of goods sold at the greater of (i) the amount
computed using the ratio of current gross revenues for the product to the total
of current and anticipated future gross revenues, or (ii) the straight-line
method over the remaining estimated economic life of the product. An original
estimated economic life ranging from one to five years is assigned to
capitalized software development costs. It is reasonably possible that those
estimates of anticipated future gross revenues, the remaining estimated economic
life of the product, or both, could be reduced as a result of the rapid
technological changes occurring in the markets in which the Company sells its
products.

RESEARCH AND DEVELOPMENT: Research and development costs applicable to both
present and future products are charged to operations as incurred.

                                      F-9
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

NOTE 1. NATURE OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

NET LOSS PER SHARE: The FASB has issued Statement No. 128, Earnings Per Share,
which supersedes APB Opinion No. 15. Statement No. 128 requires the presentation
of earnings per share by all entities that have common stock or potential common
stock, such as options, warrants, and convertible securities, outstanding that
trade in a public market. Those entities that have only common stock outstanding
are required to present basic earnings per-share amounts. Basic per-share
amounts are computed, generally, by dividing net income or loss, as adjusted for
by the weighted-average number of common shares outstanding. All other entities
are required to present basic and diluted per-share amounts. Diluted per-share
amounts assume the conversion, exercise, or issuance of all potential common
stock instruments unless the effect is anti-dilutive, thereby reducing the loss
or increasing the income per common share.

The Company initially applied Statement No. 128 for the year ended December 31,
1997, and, as required by the statement, has restated all per-share information
for the prior years to conform to the statement.  In calculating the basic loss
per share, the premium earned by the preferred shareholders ($344,939 in 1997
and $331,334 in 1996) was added to the net loss in 1997 and 1996.  As described
in Note 7, at December 31, 1997 and 1996, the Company had options and warrants
outstanding to purchase a total of 1,594,872 and 955,265 shares of common stock,
respectively, at a weighted-average exercise price of approximately $7.15 and
$7.31, respectively.  However, because the Company has incurred a loss in all
periods presented, the inclusion of those potential common shares in the
calculation of diluted loss per share would have an anti-dilutive effect.
Therefore, basic and diluted loss per-share amounts are the same in each period
presented.

NOTE 2. SUBSEQUENT EVENT: ISSUANCE OF SERIES C CONVERTIBLE PREFERRED STOCK

On February 19, 1998, the Company completed a private placement transaction by
selling 110 shares of Series C Preferred Stock, that accretes at the rate of 8
percent per year which provided net proceeds of approximately $10.3 million. In
conjunction with this transaction, the placement agent was granted a five-year
warrant to purchase 90,644 shares of common stock at $7.28 per share. The Series
C Preferred Stock is convertible into Company common stock, subject to certain
restrictions, at a variable conversion rate equal to the lower of the Maximum
Conversion Price (generally $9.00 per share, subject to certain limitations) or
the average of the three lowest closing bid prices of the common stock during an
applicable pricing period. The Series C Preferred Stock is junior to the Series
A and B Preferred Stock.

The Company believes that the capital received from the private placement will
provide adequate liquidity to fund growth, operations, and capital expenditures
for 1998.

                                      F-10
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

NOTE 3. INVENTORIES

Inventories at December 31, 1997 and 1996, consisted of:

<TABLE>
<CAPTION>
                                                         1997             1996
- ---------------------------------------------------------------------------------
<S>                                                  <C>              <C>
Raw materials                                        $ 2,398,066      $   803,147
Work in process                                             --            437,023
Finished goods consigned to customers and others         527,078          625,222
Finished goods                                           663,500          880,569
Reserve for obsolescence                              (1,094,922)         (50,000)
                                                     ----------------------------
                                                     $ 2,493,722      $ 2,695,961
                                                     ============================
</TABLE>

NOTE 4.  NOTES PAYABLE AND LONG-TERM DEBT
Long-term debt consists of the following at December  31, 1997 and 1996:

<TABLE>
<CAPTION>
                                                          1997           1996
- ---------------------------------------------------------------------------------
<S>                                                  <C>            <C>   
Note payable to shareholder (1)                      $      85,642  $     143,752
Capital lease obligations (2)                              109,205         95,553
                                                     ----------------------------
                                                           194,847        239,305
                                                           
Less current maturities                                     65,145         61,923
                                                     ----------------------------
                                                     $     129,702  $     177,382
                                                     ============================
</TABLE>

(1)  Payments are made to the note holder in an amount equal to 0.94 percent of
     Company sales in excess of $4,000,000 in any calendar year.

(2)  The Company has capitalized certain equipment held under capital leases
     with a capitalized cost of $296,796 and $186,496 and accumulated
     depreciation of $99,745 and $45,902 at December 31, 1997 and 1996,
     respectively. The related obligations are recorded in the accompanying
     financial statements based on the present value of the future minimum lease
     payments based on an implicit interest rate of 13 percent.

Approximate aggregate annual maturities of long-term debt, including capital
lease obligations, at December  31, 1997, are as follows:

Years ending December 31:
 1998                                                                  $  65,000
 1999                                                                     32,000
 2000                                                                     12,000
Note with no specified maturity                                           86,000
                                                                       ---------
                                                                       $ 195,000
                                                                       =========

                                      F-11
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------


NOTE 5. MAJOR CUSTOMERS AND CONCENTRATION OF CREDIT RISK

MAJOR CUSTOMERS: A summary of major customers follows:

<TABLE>
<CAPTION>
                           1997                   1996                 1995
                    --------------------  --------------------  --------------------
                                 Percent              Percent               Percent
Customer             Sales      to Total    Sales     to Total    Sales     to Total
- ------------------------------------------------------------------------------------
<S>                <C>          <C>      <C>          <C>       <C>         <C>
Hucom, Inc.        $6,983,000     88     $2,585,000     41      $1,126,000      24
Falcon Systems           --       --        757,000     12         142,000       3
</TABLE>

Accounts receivable from major customers totaled approximately $839,000 at
December  31, 1997.

Export net sales totaled approximately $7,340,000, $3,277,000, and $1,300,000 in
1997, 1996, and 1995, respectively.  Hucom, Inc. comprised 95, 79, and 87
percent of export net sales in 1997, 1996, and 1995, respectively.

A significant portion of Hucom's sales of Ancor's products in fiscal 1997 and
1996 have been to one end user.  In future periods, Hucom's sales of Ancor's
products to this end user are expected to be significantly less than in fiscal
1997.

NOTE 6. INCOME TAXES

Deferred tax assets consist of the following components as of December 31, 1997
and 1996:

<TABLE>
<CAPTION>
                                                                 1997            1996
- -----------------------------------------------------------------------------------------
<S>                                                         <C>               <C>
Loss carryforwards                                          $  8,594,000      $ 7,269,000
Tax credit carryforwards                                         694,000          578,000
Accrued expenses                                                  51,000           27,000
Allowances for obsolete inventory, product returns, and
 doubtful
 accounts                                                        833,000           90,000
Other items                                                      157,000
                                                            ------------      -----------
                                                              10,329,000        7,964,000

Less valuation allowance                                     (10,329,000)      (7,964,000)
                                                            ------------      -----------
                                                            $         --      $        --
                                                            ============      ===========
</TABLE>

The income tax benefit differed from the statutory federal rate as follows:

<TABLE>
<CAPTION>
                                                                 December 31
                                               -----------------------------------------------
                                                    1997             1996             1995
- ----------------------------------------------------------------------------------------------
<S>                                            <C>               <C>              <C>
Statutory rate applied to loss before taxes     $(3,438,000)     $(1,851,000)     $(1,144,000)
Current period tax benefits not utilized          3,438,000        1,851,000        1,144,000
                                               -----------------------------------------------
                                                $        --      $        --      $        --
                                               ===============================================
</TABLE>

                                      F-12
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

NOTE 6.  INCOME TAXES (CONTINUED)

At December 31, 1997, the Company has net operating loss, research and
development credit, and investment tax credit carryforwards (under existing tax
laws) as follows:

<TABLE>
<CAPTION>
                                                    Net
Carryforward                                     Operating         Tax
Expiration                                          Loss         Credits
- ------------------------------------------------------------------------
<S>                                             <C>            <C> 
1998                                            $   400,000    $  22,000
1999                                                     --       15,000
2000                                                900,000         --
2006                                              1,100,000       82,000
2007                                              3,100,000      117,000
2008                                              2,100,000      126,000
2009                                              3,000,000      138,000
2010                                              3,500,000       82,000
2011                                              5,100,000      104,000
2012                                              7,900,000      100,000
                                                ------------------------
                                                $27,100,000    $ 786,000
                                                ========================
</TABLE>

Because of the changes in ownership that have occurred in connection with the
Company's initial public offering (IPO) in 1994, as well as the sales of
securities that have occurred subsequent to the IPO, the Company's future use of
its net operating loss and tax credit carryforwards are subject to certain
annual limitations.

NOTE 7. SHAREHOLDERS' EQUITY

PREFERRED STOCK: The Company has authorized 5,000,000 shares of preferred stock
at December 31, 1997. There are two series of preferred stock outstanding at
December 31, 1997. See Note 2 for Series C Preferred Stock.

SERIES A: In 1996, the Board of Directors designated 1,100 shares of the
authorized preferred stock as Series A Preferred Stock. In March 1996, the
Company sold 1,030 shares of Series A Preferred Stock in a private placement
transaction which provided proceeds of $9,543,534, net of issuance costs of
$756,466. In addition, the placement agent was granted warrants to purchase
111,094 shares of common stock at $6.49 per share.

The Series A Preferred Stock has a stated value and liquidation preference of
$10,000, plus an 8 percent per annum premium. The holders of the Series A
Preferred Stock are not entitled to vote or to receive dividends. Each share of
Series A Preferred Stock is convertible into common stock at the option of the
holder based on its stated value at the conversion date divided by a conversion
price. The conversion price is defined as the lesser of $6.49 per share or 85
percent of the average closing bid price of the Company's common stock for the
five days preceding the conversion date. During 1997 and 1996, a total of 988
shares of Series A Preferred Stock were converted into 1,759,938 shares of
common stock. In January 1998, the remaining shares of Series A Preferred Stock
were converted into 134,268 shares of common stock.

                                      F-13
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

NOTE 7. SHAREHOLDERS' EQUITY (CONTINUED)

SERIES B:  In 1997, the Board of Directors designated 900 shares of the
authorized preferred stock as Series B Preferred Stock.  On March 24, 1997, the
Company completed a private placement transaction by selling 855 shares of
Series B Convertible Preferred Stock which provided proceeds of $8,550,000, less
issuance costs of $602,253.  In conjunction with the transaction, the placement
agent was granted a five-year warrant to purchase 105,556 shares of common stock
at $4.86 per share.

The Series B Preferred Stock has a stated value and liquidation preference of
$10,000, plus a 5  percent per annum premium.  The holders of the Series B
Preferred Stock are not entitled to vote or to receive dividends.  Each share of
Series B Preferred Stock is convertible into common stock at the option of the
holder based on its stated value at the conversion date divided by a conversion
price.  The conversion price is defined as the lesser of $4.86 per share or 85
percent of the average closing bid price of the Company's common stock for the
five days preceding the conversion date.  In addition, the investors have a
right to receive warrants to purchase common stock equal to 20 percent of their
original investment not converted to common stock as of March 24, 1998, divided
by the conversion price then in effect, with an exercise price equal to 115
percent of the average closing bid price for five days ending on the one-year
anniversary date.  During 1997, a total of 415  shares of Series B Preferred
Stock were converted into 876,383 shares of common stock.

The Series B Preferred Stock also includes provisions for (i) adjustment of the
conversion rate and price in the event of stock splits, stock dividends, and
mergers, (ii) restrictions on the Company's ability to issue capital stock with
distribution or liquidation preferences senior to the Series B Preferred Stock,
(iii)  registration rights, and (iv) redemption by the Company in certain
circumstances.

OPTIONS AND WARRANTS:  The Company's 1994 Long-Term Incentive and Stock Option
Plan provides for the granting of stock options, stock appreciation rights,
restricted stock awards, and performance awards to officers, directors,
employees, and independent contractors of the Company.  The options may be
granted at an exercise price of not less than the fair market value of common
stock at the date of grant (110  percent for more than 10  percent
shareholders).

The Company has adopted the disclosure-only provisions of Statement of Financial
Accounting Standards No. 123, Accounting for Stock-Based Compensation.
Accordingly, no compensation cost has been recognized for the stock option plan.
Had compensation cost for the Company's stock option plan been determined based
on the fair value at the grant date for awards in 1997, 1996, and 1995
consistent with the provisions of SFAS No. 123, the Company's net loss and net
loss per share would have been increased to the pro forma amounts indicated
below:

<TABLE>
<CAPTION>
                                                               Years Ended December 31
                                              -----------------------------------------------------
                                                   1997                 1996               1995
- ---------------------------------------------------------------------------------------------------
<S>                                           <C>                 <C>                <C>
Net loss, as reported                         $   (9,823,000)     $  (5,289,684)     $  (3,268,915)
Net loss, pro forma                              (11,241,000)        (5,781,684)        (3,324,915)
Basic and diluted net loss per share, as
 reported                                              (0.93)             (0.60)             (0.44)
Basic and diluted net loss per share, pro              (1.06)             (0.65)             (0.45)
 forma
</TABLE>

                                      F-14
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

NOTE 7. SHAREHOLDERS' EQUITY (CONTINUED)

The above pro forma effects on net loss and net loss per share are not likely to
be representative of the effects on reported net income (loss) for future years
because options vest over several years and additional awards generally are made
each year.

The fair value of each option grant is estimated on the date of grant using the
Black-Scholes option pricing model with the following weighted-average
assumptions used for grants in 1997, 1996, and 1995:

<TABLE>
<CAPTION>
                                                 Years Ended December 31
                                       -----------------------------------------
                                         1997           1996              1995
- --------------------------------------------------------------------------------
<S>                                    <C>            <C>               <C>
Expected dividend yield                $    --         $   --           $   --
Expected stock price volatility            124%            82%              58%
Risk-free interest rate                   6.30%          6.05%            5.70%
Expected life of options (years)             3              2              2.5

</TABLE>

The weighted-average fair value, as determined using the Black-Scholes option
pricing model, of options and warrants granted during 1997, 1996, and 1995 was
$4.53, $4.70, and $2.00, respectively.

Transactions involving stock options and warrants during the three years ended
December  31, 1997, are summarized as follows:

<TABLE>
<CAPTION>
                                                                              Weighted-
                                                                               Average
                                                                              Exercise
                                                            Stock               Price
                                       Warrants             Options           Per Share
- ---------------------------------------------------------------------------------------
<S>                                   <C>                 <C>                <C>
Balance, December 31, 1994             600,000              325,267           $   3.35
 Granted                                85,500              201,500               5.08
 Exercised                                --                (19,035)              1.57
 Expired                                  --                (35,566)              3.49
                                      -------------------------------------------------
Balance, December 31, 1995             685,500              472,166               4.26
 Granted                               111,094              471,000               9.39
 Exercised                            (705,762)             (89,791)              3.72
 Expired                                  --                (12,942)              5.00
                                      -------------------------------------------------
Balance, December 31, 1996              90,832              840,433               7.31
 Granted                               105,556              746,500               6.77
 Exercised                             (25,182)             (60,808)              4.08
 Expired                                  --               (102,459)              8.71
                                      -------------------------------------------------
Balance, December 31, 1997             171,206            1,423,666           $   7.15
                                      =================================================
Currently exercisable                  171,206              392,949           $   5.79
Not currently exercisable                 --              1,030,717               7.89
                                      -------------------------------------------------
                                       171,206            1,423,666           $   7.15
                                      =================================================
</TABLE>

                                      F-15
<PAGE>
 
ANCOR COMMUNICATIONS, INCORPORATED

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

NOTE 7. SHAREHOLDERS' EQUITY (CONTINUED)

The following tables summarize information about stock options and warrants
outstanding as of December 31, 1997:

                        OPTIONS AND WARRANTS OUTSTANDING

<TABLE>
<CAPTION>
                                               Weighted-
                                                Average
                                               Remaining      Weighted-
                                Number        Contractual      Average
                               of Units          Life         Exercise
Range of Exercise Price      Outstanding      (In Years)       Price
- ------------------------------------------------------------------------
<S>                           <C>             <C>           <C>
$ 3.20 - 4.88                   328,959           2.7        $    4.00
$ 5.13 - 8.07                   746,413           5.5             5.71
$9.13 - 14.50                   519,500           6.2            11.11
                              ---------                      ---------
                              1,594,872                      $    7.15
                              =========                      =========
</TABLE>          

NOTE 8. COMMITMENTS

OPERATING LEASES: The Company leases its office facility and certain equipment
under operating leases. The total minimum annual future rentals under these
noncancelable operating leases are approximately $228,000 and $71,000 in 1998
and 1999, respectively. The office facility lease requires the Company to pay
real estate taxes, insurance, and maintenance costs. Total rent expense under
the operating lease arrangements for 1997, 1996, and 1995, was approximately
$391,000, $439,000, and $312,000, respectively.

POTENTIAL CONTINGENT CONSIDERATION: In connection with its 1986 acquisition of
Anderson Cornelius Company (subsequently merged into Ancor), the Company agreed
to pay additional contingent consideration. This additional consideration (up to
a remaining maximum of approximately $207,000) is payable annually at 4 percent
of Company sales in excess of $4,000,000 in any calendar year and is recorded as
cost in excess of assets acquired. Amounts payable under this arrangement were
not material in any year presented.

PROFIT SHARING PLAN: The Company has a profit sharing/401(k) plan which provides
that an annual contribution, up to the maximum amount allowed as a deduction by
the Internal Revenue Code, may be contributed by the Company to the plan.
Company contributions to the plan are discretionary as determined by the Board
of Directors. No contributions were made by the Company during 1997, 1996, and
1995.

MAJOR SUPPLIER: The Company outsources the manufacturing of its products with a
contract manufacturer. Purchases from this manufacturer were approximately
$6,480,000, $5,086,000, and $870,000 in 1997, 1996, and 1995, respectively.
Management believes that alternative contract manufacturers are available.

                                      F-16
<PAGE>
 
NOTE 9. LAWSUITS

SECURITIES LAWSUIT: The Company, along with three former officers/directors, has
been named as a defendant in a securities action filed in United States District
Court for the District of Minnesota on July 24, 1997. The lawsuit alleges that
the Company violated sections 10(b) and 20(a) of the Securities Exchange Act of
1934, when it allegedly made misleading public disclosures relating to the
Company's contract with Sequent Computer Systems, Inc. and the Company's
financial results, and seeks compensatory losses in an undetermined amount. The
lawsuit is also seeking class-action status. The lawsuit was amended on December
1, 1997, by the plaintiffs in response to a motion by the Company to dismiss the
initial complaint. The amended complaint alleges the same claims as the initial
complaint. On March 16, 1998, the Company filed its motion to dismiss the
amended complaint. This action is in its preliminary stages and discovery is
currently stayed. The Company believes that the lawsuit is without merit and
intends to defend it vigorously. The Company is unable to determine if there
will be a material adverse outcome at this time. Accordingly, no accrual of any
possible loss has been provided for in the accompanying financial statements. An
unfavorable outcome of this case could have a material impact on the Company's
financial position.

NOTE 10. FOURTH-QUARTER ADJUSTMENTS

1997 FOURTH-QUARTER ADJUSTMENTS: After experiencing further difficulties with
the collections from certain of its customers, most notably the value added
resellers, the Company increased its allowances for both future product returns
and bad debts by a total of $543,000 during the quarter ended December 31, 1997.
In addition, in connection with a revision to its business plan to not actively
promote certain of its products which have been replaced by more technologically
advanced versions, the Company increased its allowance for obsolescence by
approximately $482,000. These adjustments had the effect of reducing fourth-
quarter sales by approximately $530,000 and increasing the fourth-quarter net
loss and net loss per common share by approximately $1,025,000 and $0.09 per
share, respectively.

1996 FOURTH-QUARTER ADJUSTMENTS: In the fourth quarter of 1996, the Company made
significant adjustments relating to customer cancellations of sales made in
prior 1996 quarters, the recording of product returns reserve (discussed in the
accounting policies relating to revenue recognition), inventory reserves and
write-offs, and other asset write-offs. These adjustments had the effect of
increasing the fourth-quarter net loss and net loss per common share by
approximately $944,000 and $0.09 per share, respectively.

                                      F-17
<PAGE>
 
                                                                     SCHEDULE II
ANCOR COMMUNICATIONS, INCORPORATED

VALUATION AND QUALIFYING ACCOUNTS
Year Ended December 31, 1997

<TABLE>
<CAPTION>
                                                           Charged to
                                                           Cost and
                                             Balance at    Expenses                      Balance
                                             Beginning     or Against                    at End
            Description                      of Period     Net Sales     Deductions     of Period
- ----------------------------------------------------------------------------------------------------
<S>                                          <C>          <C>            <C>          <C>
Deducted in the balance sheet from the
   assets to which it applies:
   Allowance for doubtful accounts:
      Year ended December 31, 1997           $ 64,000     $   45,000     $      0     $  109,000
   Allowance for future product returns:
      Year ended December 31, 1997            150,000(1)     983,000(2)   438,000(3)     695,000(1)
   Inventory valuation reserve:
      Year ended December 31, 1997             50,000      1,044,922            0      1,094,922

</TABLE>
(1)  The amounts at the beginning and end of the period are net of the estimated
     value of product returns of $150,000 and $355,000, respectively.

(2)  The gross provision of $1,500,000 which was charged against net sales is
     offset by the estimated value of the related product returns of $517,000,
     resulting in a net provision of $983,000.

(3)  The gross sales value of the actual products returned by customers of
     $750,000 is offset by the actual value of the related products which were
     returned of $312,000, resulting in a net deduction to the allowance of
     $438,000.

     The activity in the above accounts during 1996 and 1995 was not considered
material.

                                      F-18

<PAGE>
 
                                                                    Exhibit 4.16

THIS WARRANT AND THE SECURITIES RECEIVABLE UPON EXERCISE HEREOF HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"),
OR ANY STATE SECURITIES LAW, AND MAY NOT BE SOLD, TRANSFERRED, PLEDGED,
HYPOTHECATED OR OTHERWISE DISPOSED OF UNLESS (i) A REGISTRATION STATEMENT UNDER
THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS SHALL HAVE BECOME
EFFECTIVE WITH REGARD THERETO, OR (ii) AN EXEMPTION FROM REGISTRATION UNDER THE
SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS IS AVAILABLE IN CONNECTION
WITH SUCH OFFER, SALE OR TRANSFER.

Warrant to Purchase
90,644 shares

                        WARRANT TO PURCHASE COMMON STOCK
                                       OF
                       ANCOR COMMUNICATIONS, INCORPORATED

     THIS CERTIFIES that DUNWOODY BROKERAGE SERVICES, INC. or any subsequent
holder ("Holder") hereof, has the right to purchase from ANCOR COMMUNICATIONS,
INCORPORATED, a Minnesota corporation (the "Company"), not more than 90,644
fully paid and nonassessable shares of the Company's Common Stock, $.01 par
value ("Common Stock"), at a price equal to the Exercise Price (as defined in
Section 3 below), subject to adjustment as provided herein, at any time on or
before 5:00 p.m., Atlanta, Georgia time, on February 19, 2003.

     The Holder of this Warrant agrees with the Company that this Warrant is
issued and all rights hereunder shall be held subject to all of the conditions,
limitations and provisions set forth herein.

     1. DATE OF ISSUANCE.

     This Warrant shall be deemed to be issued on February 19, 1998 ("Date of
Issuance").

     2. EXERCISE.

     (a) Manner of Exercise. This Warrant may be exercised as to all or any
lesser number of full shares of Common Stock covered hereby upon surrender of
this Warrant, 

                                       1
<PAGE>
 
with the Exercise Form attached hereto as Exhibit A ("Exercise Form") duly
executed, together with the full Exercise Price (as defined in Section 3) for
each share of Common Stock as to which this Warrant is exercised, at the office
of the Company, Ancor Communications, Incorporated, 6130 Blue Circle Drive,
Minnetonka, MN 55343, Attention: Chief Financial Officer, Telephone No. (612)
932-4000, Facsimile No. (612) 932-4037, or at such other office or agency as the
Company may designate in writing, by overnight mail, with an advance copy of the
Exercise Form by facsimile (such surrender and payment of the Exercise Price
hereinafter called the "Exercise ").

     (b) Date of Exercise. The "Date of Exercise" of the Warrant shall be
defined as the date that the advance copy of the Exercise Form is sent by
facsimile to the Company, provided that the original Warrant, Exercise Form and
full Exercise Price are received by the Company within five (5) business days
thereafter. The original Warrant, Exercise Form and full Exercise Price must be
received within five (5) business days of the Date of Exercise, or the exercise
may, at the Company's option, be considered void. Alternatively, the Date of
Exercise shall be defined as the date the original Exercise Form, original
Warrant and Exercise Price are received by the Company, if Holder has not sent
advance notice by facsimile.

     (c) Cancellation of Warrant. This Warrant shall be canceled upon its
Exercise and, as soon as practical after the Date of Exercise, the Holder hereof
shall be entitled to receive Common Stock certificates representing the number
of shares purchased upon such Exercise, and if this Warrant is not exercised in
full, the Holder shall be entitled to receive a new Warrant or Warrants
(containing terms identical to this Warrant) representing any unexercised
portion of this Warrant in addition to such Common Stock.

     (d) Holder of Record. The Holder of this Warrant shall, for all purposes,
be deemed to have become the Holder of record of the shares of Common Stock to
be issued upon exercise hereof as of the Date of Exercise of this Warrant,
irrespective of the date of delivery of such shares of Common Stock. Nothing in
this Warrant shall be construed as conferring upon the Holder hereof any rights
as a shareholder of the Company.

     3. PAYMENT OF WARRANT EXERCISE PRICE.

     The "Exercise Price" shall equal $7.281.

     Payment of the Exercise Price may be made by either of the following, or a
combination thereof, at the election of Holder:

     (i) Cash Exercise: cash, certified check, cashiers check or wire transfer;
or

                                       2
<PAGE>
 
     (ii) Cashless Exercise: surrender of this Warrant at the principal office
of the Company together with notice of cashless election, in which event the
Company shall issue Holder a number of shares of Common Stock computed using the
following formula:

                               X = Y (A-B)/A

where: X = the number of shares of Common Stock to be issued to Holder.

       Y = the number of shares of Common Stock for which this Warrant is being
           exercised.

       A = the Market Price of one (1) share of Common Stock (for purposes of 
this Section 3(ii), the "Market Price" shall be defined as the average closing
price of the Common Stock for the five (5) trading days prior to the Date of
Exercise of this Warrant (the "Average Closing Price"), as reported by Nasdaq or
if the Common Stock is not traded on Nasdaq, the Average Closing Price on the
primary market for the Common Stock. If the Common Stock is/was not traded
during the five (5) trading days prior to the Date of Exercise, then the closing
price for the last publicly traded day shall be deemed to be the closing price
for any and all (if applicable) days during such five (5) trading day period.

       B = the Exercise Price.

For purposes of Rule 144 and sub-section (3)(ii) thereof, it is intended,
understood and acknowledged that the Common Stock issuable upon exercise of this
Warrant in a cashless exercise transaction shall be deemed to have been acquired
at the time this Warrant was issued to the extent permitted by applicable law.
Moreover, it is intended, understood and acknowledged that the holding period
for the Common Stock issuable upon exercise of this Warrant in a cashless
exercise transaction shall be deemed to have commenced on the date this Warrant
was issued to the extent permitted by applicable law.

     4. TRANSFER AND REGISTRATION.

     (a) Transfer Rights. Subject to the provisions of Section 8 of this
Warrant, this Warrant may be transferred on the books of the Company, in whole
or in part, in person or by attorney, upon surrender of this Warrant properly
endorsed. This Warrant shall be canceled upon such surrender and, as soon as
practicable thereafter, the person to whom such transfer is made shall be
entitled to receive a new Warrant or Warrants as to the portion of this Warrant
transferred, and the Holder of this Warrant shall be entitled to receive a new
Warrant or Warrants as to the portion hereof retained.

                                       3
<PAGE>
 
     (b) Registrable Securities. The Common Stock issuable upon the exercise of
this Warrant is subject to the Registration Rights Agreement dated on or about
February 19, 1998 by and between the Company and Dunwoody Brokerage Services,
Inc. and, accordingly, has the benefit of the registration rights pursuant to
that agreement.

     5. ANTI-DILUTION ADJUSTMENTS.

     (a) Stock Dividend. If the Company shall at any time declare a dividend
payable in shares of Common Stock, then the Holder hereof, upon Exercise of this
Warrant after the record date for the determination of Holders of Common Stock
entitled to receive such dividend, shall be entitled to receive upon Exercise of
this Warrant, in addition to the number of shares of Common Stock as to which
this Warrant is Exercised, such additional shares of Common Stock as such Holder
would have received had this Warrant been Exercised immediately prior to such
record date and the Exercise Price will be proportionately adjusted.

     (b) Recapitalization or Reclassification. If the Company shall at any time
effect a recapitalization, reclassification or other similar transaction of such
character that the shares of Common Stock shall be changed into or become
exchangeable for a larger or smaller number of shares, then upon the effective
date thereof, the number of shares of Common Stock which the Holder hereof shall
be entitled to purchase upon Exercise of this Warrant shall be increased or
decreased, as the case may be, in direct proportion to the increase or decrease
in the number of shares of Common Stock by reason of such recapitalization,
reclassification or similar transaction, and the Exercise Price shall be, in the
case of an increase in the number of shares, proportionally decreased and, in
the case of decrease in the number of shares, proportionally increased. The
Company shall give the Warrant Holder the same notice it provides to holders of
Common Stock of any transaction described in this Section 5(b).

     (c) Distributions. If the Company shall at any time distribute to Holders
of Common Stock cash, evidences of indebtedness or other securities or assets
(other than cash dividends or distributions payable out of earned surplus or net
profits for the current or preceding year) then, in any such case, the Holder of
this Warrant shall be entitled to receive, upon exercise of this Warrant, with
respect to each share of Common Stock issuable upon such Exercise, the amount of
cash or evidences of indebtedness or other securities or assets which such
Holder would have been entitled to receive with respect to each such share of
Common Stock as a result of the happening of such event had this Warrant been
Exercised immediately prior to the record date or other date fixing shareholders
to be affected by such event (the "Determination Date") or, in lieu thereof, if
the Board of Directors of the Company should so determine at the time of such
distribution, the Exercise Price may be reduced to an Exercise Price determined
by 

                                       4
<PAGE>
 
subtracting from the Exercise Price on the Determination the value of such
distribution applicable to one share of Common Stock (such value to be
determined by the Board in its discretion).

     (d) Notice of Consolidation or Merger. In the event of a merger,
consolidation, exchange of shares, recapitalization, reorganization, or other
similar event, as a result of which shares of Common Stock of the Company shall
be changed into the same or a different number of shares of the same or another
class or classes of stock or securities or other assets of the Company or
another entity or there is a sale of all or substantially all the Company's
assets (a "Corporate Change"), then this Warrant shall be assumed by the
acquiring entity or any affiliate thereof and thereafter this Warrant shall be
exerciseable into such class and type of securities or other assets as the
Holder would have received had the Holder exercised this Warrant immediately
prior to such Corporate Change; provided, however, that Company may not affect
any Corporate Change unless it first shall have given twenty (20) days notice to
the Holder hereof of any Corporate Change.

     (e) Exercise Price Adjusted. As used in this Warrant, the term "Exercise
Price" shall mean the Exercise Price per share specified in the first paragraph
of this Warrant, until the occurrence of an event stated in subsection (a), (b)
or (c) of this Section 5 and thereafter shall mean said price as adjusted from
time to time in accordance with the provisions of said subsections. No such
adjustment under this Section 5 shall be made unless such adjustment would
change the Exercise Price at the time by $.01 or more; provided, however, that
all adjustments not so made shall be deferred and made when the aggregate
thereof would change the Exercise Price at the time by $.01 or more. No
adjustment made pursuant to any provision of this Section 5 shall have the
effect of increasing the total consideration payable upon Exercise of this
Warrant in respect of all the Common Stock as to which this Warrant may be
exercised. Notwithstanding anything to the contrary contained herein, the
Exercise Price shall not be reduced to an amount below the par value of the
Common Stock.

     (f) Adjustments: Additional Shares, Securities or Assets. In the event that
at any time, as a result of an adjustment made pursuant to this Section 5, the
Holder of this Warrant shall, upon Exercise of this Warrant, become entitled to
receive shares and/or other securities or assets (other than Common Stock) then,
wherever appropriate, all references herein to shares of Common Stock shall be
deemed to refer to and include such shares and/or other securities or assets;
and thereafter the number of such shares and/or other securities or assets shall
be subject to adjustment from time to time in a manner and upon terms as nearly
equivalent as practicable to the provisions of this Section 5.

                                       5
<PAGE>
 
     6. FRACTIONAL INTERESTS.

     No fractional shares or scrip representing fractional shares shall be
issuable upon the Exercise of this Warrant, but upon Exercise of this Warrant,
the Holder hereof may purchase only a whole number of shares of Common Stock.
If, upon Exercise of this Warrant, the Holder hereof would be entitled to a
fractional share of Common Stock or a right to acquire a fractional share of
Common Stock, such fractional share shall be disregarded and the number of
shares of Common Stock issuable upon conversion shall be the next higher number
of shares.

     7. RESERVATION OF SHARES.

     The Company shall at all times reserve for issuance such number of
authorized and unissued shares of Common Stock (or other securities substituted
therefore as herein above provided) as shall be sufficient for Exercise of this
Warrant. The Company covenants and agrees that upon Exercise of this Warrant,
all shares of Common Stock issuable upon such Exercise shall be duly and validly
issued, fully paid, nonassessable and not subject to preemptive rights, rights
of first refusal or similar rights of any person or entity.

     8. RESTRICTIONS ON TRANSFER.

     (a) Registration or Exemption Required. This Warrant and the Common Stock
issuable upon Exercise hereof have not been registered under the Securities Act
of 1933, as amended, and may not be sold, transferred, pledged, hypothecated or
otherwise disposed of in the absence of registration or the availability of an
exemption from registration under said Act. All shares of Common Stock issued
upon Exercise of this Warrant shall bear an appropriate legend to such effect,
if applicable.

     (b) Assignment. The Holder may sell, transfer, assign, pledge or otherwise
dispose of this Warrant, in whole or in part, provided such sale, transfer,
assignment, pledge or other disposition does not violate any federal or state
securities laws. Holder shall deliver a written notice to Company, substantially
in the form of the Assignment attached hereto as Exhibit B, indicating the
person or persons to whom the Warrant shall be assigned and the respective
number of warrants to be assigned to each assignee together with the original
Warrant. The Company shall effect the assignment within ten days of its receipt
of such documents, and shall deliver to the assignee(s) designated by Holder a
Warrant or Warrants of like tenor and terms to purchase the appropriate number
of shares.

                                       6
<PAGE>
 
     (c) Investment Intent. The Warrant and Common Stock issuable upon
conversion are intended to be held for investment purposes and not with an
intent to distribution, as defined in the Act.

     9. BENEFITS OF THIS WARRANT.

     Nothing in this Warrant shall be construed to confer upon any person other
than the Company and the Holder of this Warrant any legal or equitable right,
remedy or claim under this Warrant and this Warrant shall be for the sole and
exclusive benefit of the Company and the Holder of this Warrant.

     10. APPLICABLE LAW.

     This Warrant is issued under and shall for all purposes be governed by and
construed in accordance with the laws of the state of Minnesota, without giving
effect to conflict of law provisions thereof.

     11. LOSS OF WARRANT.

     Upon receipt by the Company of evidence of the loss, theft, destruction or
mutilation of this Warrant, and (in the case of loss, theft or destruction) of
indemnity or security reasonably satisfactory to the Company, and upon surrender
and cancellation of this Warrant, if mutilated, the Company shall execute and
deliver a new Warrant of like tenor and date.

     12. NOTICE OR DEMANDS.

     Notices or demands pursuant to this Warrant to be given or made by the
Holder of this Warrant to or of the Company shall be sufficiently given or made
if sent by certified or registered mail, return receipt requested, or overnight
courier postage prepaid, and addressed, until another address is designated in
writing by the Company, to Ancor Communications, Incorporated, 6130 Blue Circle
Drive, Minnetonka, MN 55343, Attention: Chief Financial Officer, Telephone No.
(612) 932-4059, Facsimile No. (612) 932-4000. Notices or demands pursuant to
this Warrant to be given or made by the Company to or of the Holder of this
Warrant shall be sufficiently given or made if sent by certified or registered
mail or overnight courier, return receipt requested, postage prepaid, and
addressed, Attn: Holder, address: c/o Dunwoody Brokerages Services, Inc., 8309
Dunwoody Place, Atlanta, Georgia 30350, until another address is designated in
writing by Holder.

                                       7
<PAGE>
 
     IN WITNESS WHEREOF, the undersigned has executed this Warrant as of the
19th day of February, 1998.

                                    ANCOR COMMUNICATIONS, INCORPORATED

                                    By:  ________________________________

                                    Print Name: _________________________

                                    Title: ______________________________

                                       8
<PAGE>
 
                                    EXHIBIT A

                                  EXERCISE FORM

                            TO: ___________________.

     The undersigned hereby irrevocably exercises the right to purchase
____________ of the shares of Common Stock of ANCOR COMMUNICATIONS,
INCORPORATED, a Minnesota corporation, evidenced by the attached Warrant, and
herewith makes payment of the Exercise Price with respect to such shares in
full, all in accordance with the conditions and provisions of said Warrant.

     The undersigned agrees not to offer, sell, transfer or otherwise dispose of
any of such Common Stock, except in accordance with the provisions of Section 8
of the Warrant, and consents that the following legend may be affixed to the
stock certificates for the Common Stock hereby subscribed for, if such legend is
applicable:

     "The securities represented hereby have not been registered under the
     Securities Act of 1933, as amended (the "Securities Act"), or any
     provincial or state securities law, and may not be sold, transferred,
     pledged, hypothecated or otherwise disposed of until either (i) a
     registration statement under the Securities Act and applicable provincial
     or state securities laws shall have become effective with regard thereto,
     or (ii) an exemption from registration under the Securities Act or
     applicable provincial or state securities laws is available in connection
     with such offer, sale or transfer."

     The undersigned requests that stock certificates for such shares be issued,
and a warrant representing any unexercised portion hereof be issued, pursuant to
the Warrant in the name of the Registered Holder and delivered to the
undersigned at the address set forth below:

     Dated:


     ------------------------------------------------------------------------
                         Signature of Registered Holder


     ------------------------------------------------------------------------
                        Name of Registered Holder (Print)


     ------------------------------------------------------------------------
                                     Address

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


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

                                       9
<PAGE>
 
                                    EXHIBIT B

                                   ASSIGNMENT

                    (To be executed by the registered Holder
                        desiring to transfer the Warrant)

FOR VALUE RECEIVED, the undersigned Holder of the attached Warrant hereby sells,
assigns and transfers unto the person or persons below named the right to
purchase _______ shares of the Common Stock of ANCOR COMMUNICATIONS,
INCORPORATED evidenced by the attached Warrant and does hereby irrevocably
constitute and appoint _______________________ attorney to transfer the said
Warrant on the books of the Company, with full power of substitution in the
premises.

Dated:                                  
                                              -------------------------------
                                                          Signature


Fill in for new Registration of Warrant:

   -----------------------------------
                 Name

   -----------------------------------
                Address

   ------------------------------------
   Please print name and address of assignee
   (including zip code number)

- -------------------------------------------------------------------------------
NOTICE

The signature to the foregoing Exercise Form or Assignment must correspond to
the name as written upon the face of the attached Warrant in every particular,
without alteration or enlargement or any change whatsoever.

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

                                       10

<PAGE>
 
                                                                   Exhibit 10.29

                                   TERMINATION
                                       OF
                              EMPLOYMENT AGREEMENT

         This Termination of Employment Agreement is entered into this 29th day
of August, 1997 between Ancor Communications, Incorporated (the "Company") and
Dale C. Showers ("Showers").

         WHEREAS, the Company and Showers are parties to an Employment Agreement
dated January 1, 1994, which was amended pursuant to Amendment No. 1 to
Employment Agreement dated November 4, 1994 (together, the "Employment
Agreement").

         WHEREAS, the Company and Showers now wish to terminate such Employment
Agreement and to provide for certain other matters.

         NOW, THEREFORE, in consideration of the above and the mutual covenants
contained herein, the Company and Showers agree as follows:

         1. The Company and Showers mutually agree to terminate the Employment
Agreement, and the Employment Agreement shall be so terminated effective as of
September __, 1997, provided, however, that Showers' obligations pursuant to
Sections 5.01, 5.02, 7.04 and 8.05 of the Employment Agreement shall survive
such termination.

         2. In consideration of Showers' agreement to terminate the Employment
Agreement, the Company shall:

                  (a) Continue to pay the lease payments on the automobile
         currently leased by the Company for Showers' use for the remainder of
         the lease term, and allow Showers to continue to use such vehicle for
         his benefit during such lease term. Upon completion of such lease, the
         Company shall purchase such vehicle for the benefit of Showers, and
         title to such vehicle shall be transferred to Showers. The Company
         shall continue to pay all costs and expenses relating to licensing,
         insuring, maintaining and repairing such automobile during the term of
         the lease, and thereafter, all such costs and expenses shall be borne
         by Showers.

                  (b) Continue to pay the premium costs of the life insurance
         policy on the life of Showers issued by Federal Kemper Life Assurance
         Company on March 18, 1992 (Policy No. 2073090) in the amount of
         $255,000 until Employee becomes 71 years old, with the beneficiary
         under such policy to be named by Showers.

         3. Other than as set forth herein, none of the parties' other rights or
obligations under the Employment Agreement shall continue after the date set
forth in Paragraph 1 hereof.

         IN WITNESS WHEREOF, the parties have executed and delivered this
Termination of Employment Agreement as of the date set forth in the first
paragraph hereof.

                                 ANCOR COMMUNICATIONS, INCORPORATED

                                 /S/ KENNETH E. HENDRICKSON
                                 ----------------------------------
                                 By: Kenneth E. Hendrickson
                                 Its: Chief Executive Officer

                                 DALE C. SHOWERS

                                 /S/ DALE SHOWERS
                                 ----------------------------------

<PAGE>
 
                                                                  Exhibit 10.30


                      THIRD AMENDMENT TO SUBLEASE AGREEMENT


THIS THIRD AMENDMENT is made and entered into this 11Th day of February 1998 by
and between Ancor Communications, Inc., formerly known as Anderson Cornelius
("Sublessee") and Unisys Corporation, formerly known as Burroughs Corporation
("Sublessor").

WHEREAS, by Sublease Agreement dated March 29, 1988, as amended by Sublease
Amendment Agreement dated March 8, 1989 and Sublease Amendment Agreement dated
August 31, 1992 (collectively, the "Sublease"), Sublessee sublet from Sublessor
certain premises consisting of a building of approximately twenty-seven thousand
five hundred sixty (27,560) square feet of rentable space located at 6130 Blue
Circle Drive, Minnetonka, Minnesota 55343 and

WHEREAS, Sublessor and Sublessee desire to extend the term of the Sublease on
the terms and conditions set forth herein.

NOW, THEREFORE, in consideration of the covenants, agreements stipulations and
provisions contained herein, to be performed by Sublessor and Sublessee, the
parties do hereby agree as follows:

         1. The term of the Sublease is hereby renewed and extended for a
            further term of twelve (12) months beginning May 1, 1998 and
            expiring April 30, 1999 (the "Renewal Term").

         2. The monthly rental for the Renewal Term shall be Seventeen Thousand 
            Two Hundred Twenty-Five and No/100 Dollars ($17,225.00).

         3. Except as modified herein, the Sublease shall remain unchanged and
            in full force and effect and the parties hereby ratify and confirm
            all the terms and conditions thereof.


IN WITNESS WHEREOF, the parties hereto have executed this Third Amendment to
Sublease Agreement as of the day and year first above written.


                                   SUBLESSEE:
                                   ANCOR COMMUNICATIONS, INC.
                                   By:  /S/STEVEN E. SNYDER
                                   Its: CFO


                                   SUBLESSOR:
                                   UNISYS CORPORATION
                                   By:  /S/ RICHARD J. L'ECUYER
                                        Corporate Director
                                        Real Estate Operations

<PAGE>
 
                                                                   Exhibit 10.31

                    SEPARATION AGREEMENT AND GENERAL RELEASE


         This Separation Agreement and General Release ("Separation Agreement")
is made and entered into this 26th day of February, 1998, by and between Lee
Lewis ("Lewis"), a resident of the State of Minnesota, and Ancor Communications,
Inc. ("Ancor"), a Minnesota corporation with its principal place of business in
Minnetonka, Minnesota.

         WHEREAS, Lewis was employed by Ancor from approximately December 9,
1993, through February 27, 1998, most recently as Vice President -
Administration;

         WHEREAS, as of February 27, 1998, Lewis will resign his employment with
Ancor, effective August 31, 1998, maintaining his status as an employee until
that date;

         WHEREAS, Lewis has negotiated with Ancor regarding the terms and
conditions of his separation from Ancor;

         WHEREAS, it is the desire of Lewis and Ancor to settle all disputes
related directly or indirectly to Lewis's employment by Ancor, and/or Lewis's
separation from employment, in accordance with the terms and conditions set
forth in this Separation Agreement;

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
set forth in this Separation Agreement and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged,

         IT IS AGREED, by and between the undersigned, as follows:

                                  Page 1 of 12
<PAGE>
 
                          A) COMPENSATION AND BENEFITS

         (1) SEVERANCE COMPENSATION: Ancor will pay the sum of Fifty-Seven
Thousand, Five Hundred and No/100 Dollars ($57,500.00) to Lewis. This sum will
be provided equal periodic payments throughout the next six months, in
accordance with Ancor's normal bi-monthly payroll disbursements. Ancor will make
state and federal tax deductions, social security deductions, and all other
appropriate deductions from this severance payment. These severance payments
represent six (6) months of Lewis's current base compensation.

         (2) VACATION COMPENSATION: In addition to the compensation described in
Paragraph (1) above, Ancor will provide Lewis with compensation for his accrued,
unused vacation in the amount of One Thousand, One Hundred Five and 77/100
Dollars ($1,105.77), less all appropriate deductions.

         (3) STOCK OPTIONS: Lewis may exercise his current vested options for
shares of Ancor stock for a period of ninety (90) days, commencing on the day
following the expiration of Lewis's severance compensation. Lewis must exercise
his options in accordance with the "Ancor Communications, Incorporated Incentive
Stock Option Agreements" dated December 20, 1993; August 9, 1994; January 4,
1995; January 10, 1996 and June 18, 1996, copies of which are attached hereto as
Exhibits A-E and which are incorporated herein by reference. Ancor acknowledges
that Lewis was granted options: (a) on December 20, 1993, for the purchase of
25,000 shares at the purchase price of $3.20 per share, 100 percent of which
(25,000 shares) is vested; (b) on August 9, 1994, for the purchase of 10,000
shares at the purchase price of $3.3125, 75 percent of which (7,500 shares) is
vested; (c) on January 4, 1995, for the purchase of 

                                  Page 2 of 12
<PAGE>
 
15,000 shares at the purchase price of $5.375, 75 percent of which (11,250
shares) is vested; (d) on January 10, 1996, for the purchase of 25,000 shares at
the purchase price of $5.75, 66.7 percent of which (16,666 shares) is vested;
and (e) on June 18, 1996, for the purchase of 25,000 shares at the purchase
price of $13.25, 33.3 percent of which (8,333 shares) is vested.

         Further, Ancor has agreed to accelerate the vesting of certain options
for which Lewis will become eligible, from their current vesting dates of
January 4 and 10, 1999, to the earlier date of August 31, 1998. Consistent with
the preceding provisions of this Paragraph (3), Lewis will have ninety (90) days
from August 31, 1998, to exercise his options on the 12,084 accelerated shares.

         Lewis will have an unfettered right to trade any Ancor shares he
currently owns and/or any Ancor shares he acquires pursuant to the option grants
described in this Paragraph, so long as he fully complies with all federal and
state securities laws.

         (4) INSURANCE BENEFITS: Ancor will continue Lewis's coverage for
health and dental care through August 31, 1998, co-terminus with the termination
of his employment with Ancor and the expiration of his severance compensation.
Thereafter, Lewis will be eligible to continue his health and dental care
coverage through COBRA for an additional eighteen (18) months. Ancor will
provide Lewis information regarding his eligibility for COBRA benefits and his
obligations pursuant to COBRA. Lewis understands and agrees that following
August 31, 1998, he will be solely responsible for making his COBRA payments.

                                  Page 3 of 12
<PAGE>
 
         (5) OUTPLACEMENT BENEFITS: Ancor will provide Lewis with outplacement
assistance through an outplacement firm mutually acceptable to Ancor and Lewis.
The maximum cost Ancor will pay to provide Lewis this assistance is Fifteen
Thousand and No/100 Dollars ($15,000.00). Lewis will direct the outplacement
firm selected, if any, to send its bills directly to Ancor and Ancor will ensure
that the outplacement firm is compensated, subject to the financial limitation
set forth above. This outplacement benefit, whether used or not, will expire as
of December 31, 1998.

         (6) NO LEGAL ENTITLEMENT TO COMPENSATION AND BENEFITS: Lewis agrees
that Ancor has no legal obligation to provide him the compensation and benefits
described in Paragraphs (1) - (5) above. Ancor has agreed to provide Lewis the
compensation and benefits described in Paragraphs (1) - (5) above to reach an
expeditious and amicable resolution regarding the terms and conditions of
Lewis's separation from employment, to minimize the attorneys' fees that
otherwise would be incurred in the defense of any litigation instituted by
Lewis, and to minimize the management time that otherwise would be expended in
the defense of any litigation instituted by Lewis.

         (7) INCLUSIVE OF ALL INCOME AND OTHER BENEFITS: Lewis agrees that the
compensation and benefits described in Paragraphs (1) - (5) above are inclusive
of any and all income or other benefits for which Lewis may be, is, or would
have been eligible, had his employment with Ancor been continued in the same or
some other manner.

                                  Page 4 of 12
<PAGE>
 
         (8) ATTORNEYS' FEES AND EXPENSES: Lewis agrees that he is responsible
for payment of all of his own attorneys' fees and expenses, if any, incurred in
conjunction with the resolution of any and all disputes he may have with Ancor
relating to his employment or the termination of his employment.

                        B) RIGHTS TO CONSIDER AND RESCIND

         (9) RIGHT TO CONSIDER EXECUTING THIS SEPARATION AGREEMENT: Lewis
understands that he has twenty-one (21) days to consider whether he should
execute this Separation Agreement. Lewis further understands, however, that he
is not required to take the entire 21-day period to decide whether he wishes to
execute this Separation Agreement and that he may do so on an accelerated basis
without prejudice to his own or Ancor's rights under this Separation Agreement.

         (10) RIGHT TO RESCIND THIS SEPARATION AGREEMENT: Lewis understands that
he has the right to rescind this Separation Agreement for any reason within
fifteen (15) days after he signs it. Lewis understands that this Separation
Agreement will not become effective or enforceable unless and until he executes
this Separation Agreement and the applicable rescission period has expired.
Lewis understands that if he wishes to rescind, the rescission must be in
writing and must be hand-delivered or mailed to Kenneth E. Hendrickson.

                  If hand-delivered, the rescission must be: (a) addressed to
Kenneth E. Hendrickson, Chief Executive Officer, Ancor Communications Corp.,
6130 Blue Circle Drive, Minnetonka, Minnesota 55343; and (b) delivered to Mr.
Hendrickson within the 15-day rescission period. If mailed, the rescission must
be: 

                                  Page 5 of 12
<PAGE>
 
(a) postmarked within the 15-day rescission period; (b) addressed to Mr.
Hendrickson at the above address; and (c) sent by certified mail, return receipt
requested.

         To the extent that Lewis receives any compensation and benefits during
the period preceding the expiration of rescission period, he agrees to return
and/or refund the amount of, or as to the benefits, the value of, all
compensation and benefits he receives, if he rescinds or revokes this Separation
Agreement. Lewis further understands that if he rescinds or revokes this
Separation Agreement, Ancor will be relieved of all obligations delineated in
Paragraphs (1) - (5) above.

                       C) FULL COMPROMISE/GENERAL RELEASE

         (11) FULL COMPROMISE: Lewis agrees that the payment and acceptance of
the consideration described in Paragraph (1) above, is in full, final, and
complete compromise, settlement, and satisfaction of any and all claims relating
directly or indirectly to: Lewis's association with or employment by Ancor;
Lewis's resignation and/or termination from employment; any conduct or
statements by Ancor's current or former directors, officers or executives;
and/or, claims Lewis could have asserted in any litigation of any kind against
Ancor.

         (12) GENERAL RELEASE OF ANCOR: Lewis, for and on behalf of himself and
his heirs, administrators, executors, successors and assigns, agrees to, and
hereby does, release, acquit, and forever discharge Ancor and its parent,
affiliates, subsidiaries, and related companies, and the current and former
directors, officers, members, agents, attorneys, servants, independent
contractors and employees of Ancor and all its related entities (the "Released
Parties"), from any and all claims, whether direct or indirect, fixed or
contingent, known or unknown, which Lewis ever had, has, or 

                                  Page 6 of 12
<PAGE>
 
may claim to have, for, upon, or by reason of any matter, act or thing prior to
the date of this Separation Agreement, including but not limited to, any cause
of action Lewis could have asserted in any litigation against any of the
Released Parties, any cause of action or claim relating to Lewis's association
with or employment by Ancor, and/or any cause of action or claim relating to
Lewis's separation from employment. This General Release specifically
encompasses, but is not limited to, claims that could be brought under the
Minnesota Human Rights Act, Minn. Stat. ss.363.01 et seq., Title VII, 42 U.S.C.
ss. 2000(e) et seq., the Americans With Disabilities Act, 42 U.S.C.
ss.ss.12101-12213, the Age Discrimination in Employment Act, 29 U.S.C. ss.621,
et seq., and any other state or federal statute, or local ordinance, including
any attorneys' fees that could be awarded in connection with these or any other
statutory claims.

         This General Release also specifically encompasses any and all claims
grounded in contract or tort theories, including, but not limited to: Breach of
contract, interference with contractual relations, promissory estoppel, breach
of the implied covenant of good faith and fair dealing, breach of employee
handbooks, manuals or other policies, wrongful discharge, wrongful discharge in
violation of public policy, whistleblower claims, assault, battery, fraud,
intentional or negligent misrepresentation, defamation, including all forms of
libel and slander, discharge defamation and self-defamation, intentional or
negligent infliction of emotional distress, breach of fiduciary duty, negligent
hiring, retention or supervision, and/or any other contract or tort theory based
on intentional or negligent conduct of any 

                                  Page 7 of 12
<PAGE>
 
kind, including any attorneys' fees that could be awarded in connection with
these or any other claims.

         (13) GENERAL RELEASE OF LEWIS: Ancor, for and on behalf of itself and
its administrators, executors, successors and assigns, hereby agrees to and does
release, acquit, and forever discharge Lewis, from any and all claims, whether
direct or indirect, fixed or contingent, known or unknown, which Ancor, ever
had, has, or may claim to have, for, upon, or by reason of any matter, act, or
thing, prior to the date of this Separation Agreement, including, but not
limited to: any cause of action it could have asserted in litigation against
Lewis; any cause of action or claim relating to Lewis's employment by or
association with Ancor; any cause of action relating to any statements or
actions by Lewis; and/or any cause of action relating to the termination of
Lewis's employment.

                                D) MISCELLANEOUS

         (14) LETTER OF REFERENCE/INQUIRIES FROM PROSPECTIVE EMPLOYERS: At
Lewis's written request, Ancor will provide Lewis a mutually acceptable letter
of reference. Lewis will be responsible for creating the initial draft of this
reference letter. Ancor reserves the right, in its sole discretion, to make any
modifications it deems appropriate to Lewis's draft document.

         Further, if inquiries are made to Ancor from prospective employers of
Lewis, the inquiries (whether written or oral) will be referred to Mr. Kenneth
E. Hendrickson or another executive mutually agreed upon by Lewis and Ancor.
Mr.Hendrickson or the other executive will provide the following information:
Lewis's name, title, tenure with Ancor and job responsibilities. If authorized
by Lewis in writing in advance, Ancor also will provide the prospective employer
any other information mutually agreed upon by Lewis and Ancor. If authorized by

                                  Page 8 of 12
<PAGE>
 
Lewis in writing in advance, Ancor also will provide the prospective employer
the letter of reference, if any, prepared pursuant to this Paragraph.

         (15) MUTUAL NON-DISPARAGEMENT AGREEMENT: Lewis agrees that he will not
disparage or defame Ancor and/or its current or former Directors and Officers.
Ancor's current Directors and Officers agree that they will not disparage or
defame Lewis.

         (16) PROPRIETARY INFORMATION: Lewis recognizes that during the course
of his employment with Ancor, he has had access to confidential, proprietary and
trade secret information belonging to Ancor, including but not limited to,
employee and personnel data and information, and Ancor's strategies, plans, and
proposals (including but not limited to, Ancor's customer, marketing, and
operation strategies), and Ancor's financial information. Lewis will comply with
his legal obligations to maintain the confidentiality of this confidential,
proprietary and trade secret information. Lewis represents that he will not
remove any Ancor property, including but not limited to business records,
manuals, customer lists and records, business forms, personnel lists, plans and
records, information regarding suppliers and vendors, marketing and strategy
plans, contracts, contract information, correspondence, computer tapes and
diskettes, data processing and other computer reports, and business files, from
Ancor's premises.

         (17) RETURN OF ANCOR PROPERTY: Lewis agrees that within fourteen (14)
days of executing this Separation Agreement, he will return to Ancor any and all

                                  Page 9 of 12
<PAGE>
 
Ancor property currently in his possession, including but not limited to, any
Ancor keys, access cards, credit cards, computer equipment, computer tapes and
diskettes, documents, manuals, client information, and any other information in
either printed or electronic formats which he obtained as a result of his
employment by Ancor, regardless of whether the information was obtained during
his employment or after his employment with Ancor ended.

         (18) CONFIDENTIALITY: Lewis agrees that it is the intent of the parties
to maintain the complete confidentiality of the terms of this Separation
Agreement and the negotiations leading to this Separation Agreement. Therefore,
Lewis agrees that he will not publicize, and will take all prudent steps to
ensure the confidentiality of this Separation Agreement. The only comment Lewis
will make about his resignation from Ancor is that he resigned voluntarily and
that all matters relating to his employment with Ancor have been resolved to the
mutual satisfaction of the parties. Notwithstanding the terms of this Paragraph,
Lewis will be entitled to disclose the terms of this Separation Agreement to his
lawyers, tax advisors, accountants, and immediate family on the condition that
those to whom such disclosure is made also will be bound by the terms of this
Paragraph.

         (19) NO ADMISSION OF FAULT: Lewis and Ancor agree that their
willingness to enter into this Separation Agreement does not constitute and
should not be construed as, any admission of liability or fault on the part of
Lewis or Ancor or any of the Released Parties.

         (20) INDEMNIFICATION: Ancor agrees to fulfill any statutory and/or
common law indemnification obligations it owes to Lewis, stemming from his
employment 

                                 Page 10 of 12
<PAGE>
 
by Ancor. This specifically includes, but is not limited to, the obligation
Ancor has assumed to defend and indemnify Lewis in connection with the lawsuit
captioned IN RE ANCOR COMMUNICATIONS INC. SECURITIES LITIGATION, Case No.
97-1996.

         This Paragraph is neither intended to increase nor diminish any
statutory and/or common law indemnification obligation Ancor may owe to Lewis.
Further, Ancor's indemnification obligation does not extend to any criminal
conduct engaged in by Lewis, though neither Lewis nor Ancor believe that any of
Lewis's conduct can be characterized in that manner.

         (21) COMPLETE AGREEMENT: Lewis agrees that there are no covenants,
promises, undertakings, or understandings outside of this Separation Agreement,
except as specifically set forth herein. Unless preserved elsewhere in this
Separation Agreement, all prior agreements and understandings between Ancor and
Lewis are null and void. This includes, but is not limited to, any agreements or
covenants Ancor previously entered with Lewis restricting Lewis's rights to
obtain alternative, competitive employment following his employment by Ancor.

         Any modification of, or addition to, this Separation Agreement must be
in writing, signed by Lewis and Ancor's Chief Executive Officer.

         (22) SEVERABILITY: Should any provision of this Separation Agreement be
held invalid or illegal, such illegality shall not invalidate the whole of this
Separation Agreement, but, rather, the Separation Agreement shall be construed
as if it did not contain the illegal part, and the rights and obligations of the
parties shall be construed and enforced accordingly.


                                 Page 11 of 12
<PAGE>
 
         (23) KNOWING AND VOLUNTARY AGREEMENT: Lewis agrees that he has entered
into this Separation Agreement knowingly and voluntarily. Lewis further
acknowledges that Ancor has recommended that he retain counsel to review this
Separation Agreement and explain to him any paragraphs, sentences, clauses or
terms used herein which he did not understand.

         (24) GOVERNING LAW: This Separation Agreement and General Release shall
be governed by, and interpreted in accordance with, the laws of the State of
Minnesota.


                                             ------------------------------
                                             LEE LEWIS

Subscribed and sworn to before me 
this day of FEBRUARY, 1998.


- ----------------------------------
Notary Public

                                             ANCOR COMMUNICATIONS, INC.


                                             By
                                                -----------------------------
                                                Kenneth E. Hendrickson
                                                Its Chief Executive Officer

Subscribed and sworn to before me 
this day of FEBRUARY, 1998.


- ------------------------------------
Notary Public


                                 Page 12 of 12

<PAGE>
 
                                                                   Exhibit 10.32

              AMENDMENT TO NON-EMPLOYEE DIRECTOR STOCK OPTION PLAN
                          ADOPTED ON SEPTEMBER 15, 1997

         WHEREAS, the Ancor Communications, Incorporated Non-Employee Director
Stock Option Plan (the "Plan") provides for the grant of stock options to
non-employee directors of the Company; and

         WHEREAS, the Plan currently provides that options to purchase 1,000
shares of the Company's Common Stock, par value $.01 per share, shall be
automatically granted to each non-employee director of the Company as of the
first business day of each calendar year; and

         WHEREAS, the Plan currently provides that a total of 15,000 shares of
the Company's Common Stock, par value $.01 per share, are available for issuable
pursuant to options granted under the Plan; and

         WHEREAS, the Board of Directors believes that it is desirable and in
the best interest of the Company and its shareholders to amend the Plan to
provide that the maximum number of shares of the Company's Common Stock issuable
pursuant to options granted under the Plan shall be 300,000 shares; and

         WHEREAS, the Board of Directors believes that it is desirable and in
the best interest of the Company and its shareholders to amend the Plan to
provide that each non-employee director of the Company shall receive an option
to purchase 12,000 shares of Common Stock as of the date such individual is
elected to the Board of Directors and that each non-employee director shall
receive an option to purchase 6,000 shares of Common Stock as of the first
business day of each calendar year.

         NOW, THEREFORE, BE IT RESOLVED that Section 4 of the Plan be amended to
change the reference to the number 15,000 to the number 300,000.

         FURTHER RESOLVED, that Section 6(a) of the Plan be amended to change
the reference to the number 1,000 to the number 6,000.

         FURTHER RESOLVED, that a new Section 6(aa) be added to the Plan
immediately following Section 6(a) of the Plan which shall read in its entirety
as follows:

                  (aa) Initial Option Grant. An option to purchase 12,000 shares
         of Common Stock shall be granted automatically on the day that any
         eligible director is first elected to the Board of Directors; provided,
         however, that if such day is not a business day, such grant shall be
         effective on the first business day following such election. Such
         grants shall be made only to eligible directors who were not directors
         of the Company prior to September 12, 1997.
<PAGE>
 
           SECOND AMENDMENT TO NON-EMPLOYEE DIRECTOR STOCK OPTION PLAN
       ADOPTED AT A MEETING OF THE BOARD OF DIRECTORS ON OCTOBER 22, 1997

         WHEREAS, on September 15, 1997, the Board of Directors amended the
Company's Non-Employee Director Stock Option Plan (the "Director Plan") to (i)
increase the number of shares available thereunder from 15,000 to 300,000, (ii)
to provide that each non-employee director of the Company shall receive an
option to purchase 12,000 shares of the Company's Common Stock upon initial
election to the Board of Directors and (iii) to increase the number of shares
subject to the annual option grant from 1,000 shares to 6,000 shares; and

         WHEREAS, Thomas Hunt and Gerald Bestler, each of whom has been members
of the Board of Directors since 1993 and 1992, respectively, did not receive the
benefit of the amendment to the Director Plan since each was a director at the
time of its amendment; and

         WHEREAS, the Board of Directors of the Company believes that it is in
the best interests of the Company to adopt a second amendment to the Director
Plan to provide for the grant additional options to Mr. Hunt and Mr. Bestler
such that each of them will hold options to purchase a total of 12,000 shares as
of the date hereof, thus holding options for the same number of shares as newly
elected directors.

         NOW, THEREFORE, BE IT RESOLVED that a new Section 6(ab) be added to the
Director Plan immediately following Section 6(aa) of the Director Plan which
shall read in its entirety as follows:

         (ab) Grants to Existing Eligible Directors. Upon adoption of this
amendment to add this Section 6(ab), an option to purchase an additional number
of shares of Common Stock shall be granted to each eligible director who was an
eligible director prior to September 12, 1997 such that each such director shall
hold options to purchase a total of 12,000 shares as of the date of this
amendment.

<PAGE>
 
                                                                    EXHIBIT 23.1


                         CONSENT OF INDEPENDENT AUDITOR

We hereby consent to the incorporation by reference in the Registration
Statements of Form S-8 (file nos. 33-8976 and 33-95138) and in the Registration
Statement on Form S-3 (file no. 333-05379) of our report, dated February 19,
1998, with respect to the financial statements appearing on page F-2 of this
Annual Report on Form 10-K.




                                             McGladrey & Pullen, LLP


Minneapolis, Minnesota
March 27, 1998

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                         507,041
<SECURITIES>                                 1,003,530
<RECEIVABLES>                                4,233,000
<ALLOWANCES>                                 (214,000)
<INVENTORY>                                  2,695,961
<CURRENT-ASSETS>                             8,562,266
<PP&E>                                       4,681,585
<DEPRECIATION>                             (1,843,469)
<TOTAL-ASSETS>                              12,262,324
<CURRENT-LIABILITIES>                        2,178,245
<BONDS>                                              0
                                0
                                          2
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