ANCOR COMMUNICATIONS INC /MN/
S-3, 1996-06-06
COMPUTER COMMUNICATIONS EQUIPMENT
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<PAGE>
     As filed with the Securities and Exchange Commission on June 6, 1996
                                                     Registration No. 333-
================================================================================

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

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

                                   FORM S-3
                            REGISTRATION STATEMENT
                                     Under
                          The Securities Act of 1933

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

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

          Minnesota                                        41-1569659
(State or other jurisdiction                 (I.R.S Employer Identification No.)
of incorporation or organization)

                            6130 Blue Circle Drive
                         Minnetonka, Minnesota 554343
                                (612) 932-4000
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

                                   Copy to:
 
          Lee B. Lewis                                  Amy E. Lange
Ancor Communications, Incorporated                  Dorsey & Whitney LLP
     6130 Blue Circle Drive                        220 South Sixth Street
   Minnetonka, Minnesota 55343                     Minneapolis, MN 55402
        (612) 932-4000                                (612) 340-6323
     (Name, address, including zip code,  and telephone number, including 
                       area code, of agent for service)

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

     Approximate date of commencement of proposed sale to the public: From time
to time after the effective date of this Registration Statement.

     If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box.  [_]

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box.  [X]

     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering.  [_]

     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [_]

     If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.  [_]

<TABLE>
<CAPTION>
                        CALCULATION OF REGISTRATION FEE
=============================================================================== 
                                   Proposed        Proposed
   Title of Each      Amount       Maximum          Maximum       Amount of
Class of Securities   to be     Offering Price     Aggregate     Registration
  to be Registered  Registered    Per Share*    Offering Price*      Fee
- ------------------------------------------------------------------------------- 
<S>                 <C>         <C>             <C>              <C>
Common Stock
($.01 par value)     689,050        $25.44         $17,529,432      $6,045
=============================================================================== 
</TABLE>
*    Estimated solely for purposes of computing the registration fee and based
     upon the average of the high and low sales prices for such Common Stock on
     June 4, 1996, as reported on the Nasdaq SmallCap Market.

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

     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
================================================================================
<PAGE>
 

PROSPECTUS


                      ANCOR COMMUNICATIONS, INCORPORATED

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

                                689,050 SHARES
                                      OF
                                 COMMON STOCK
                               ($.01 PAR VALUE)

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



     This Prospectus relates to an aggregate of 689,050 shares (the "Shares") of
Common Stock, par value $.01 per share (the "Common Stock"), of Ancor
Communications, Incorporated, a Minnesota corporation ("Ancor" or the
"Company"), that may be sold from time to time by the shareholders named herein
(the "Selling Shareholders"). See "Selling Shareholders." The Company will not
receive any proceeds from the sale of the Shares. The Company has agreed to pay
the expenses of registration of the Shares, including legal and accounting fees.

     Any or all of the Shares may be offered from time to time in transactions
on the Nasdaq SmallCap Market or the Pacific Stock Exchange in brokerage
transactions at prevailing market prices or in transactions at negotiated
prices. See "Plan of Distribution."

     The Shares offered hereby have not been registered under the blue sky or
securities laws of any jurisdiction, and any broker or dealer should assure the
existence of an exemption from registration or effectuate such registration in
connection with the offer and sale of the Shares.

     The Common Stock is traded on the Nasdaq SmallCap Market and the Pacific
Stock Exchange. On June 4, 1996, the last sale price of the Common Stock as
reported on the Nasdaq SmallCap Market was $24.375 per share.

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


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


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

     No person has been authorized to give any information or to make any
representations other than those contained in this Prospectus in connection with
the offer contained herein, and, if given or made, such information or
representations must not be relied upon as having been authorized by the
Company. This Prospectus does not constitute an offer to sell, or a solicitation
of an offer to buy, any securities offered hereby in any jurisdiction in which
it is not lawful or to any person to whom it is not lawful to make any such
offer or solicitation. Neither the delivery of this Prospectus nor any sale made
hereunder shall, under any circumstances, create any implication that
information herein is correct as of any time subsequent to the date hereof.

                 The date of this Prospectus is June 6, 1996.
<PAGE>
 

                             AVAILABLE INFORMATION

     The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and in accordance
therewith files reports, proxy statements and other information with the
Securities and Exchange Commission (the "Commission"). Such reports, proxy
statements and other information filed by the Company can be inspected and
copied at the public reference facilities of the Commission at 450 Fifth Street,
N.W., Washington, D.C. 20549, and at the Commission's regional offices at 7
World Trade Center, Suite 1300, New York, New York 10048 and CitiCorp Center,
500 West Madison Street, Suite 1400, Chicago, Illinois 60661. Copies of such
materials can be obtained from the Public Reference Section of the Commission at
450 Fifth Street, N.W., Washington, D.C. 20549, at prescribed rates. In
addition, the Common Stock of the Company is listed on the Nasdaq SmallCap
Market and the Pacific Stock Exchange, and reports, proxy statements and other
information concerning the Company can also be inspected at such exchanges. This
Prospectus does not contain all the information set forth in the Registration
Statement and exhibits thereto which the Company has filed with the Commission
under the Securities Act of 1933, as amended (the "Securities Act"), and to
which reference is hereby made.


                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The following documents of the Company which have been filed with the
Commission are hereby incorporated by reference in this Prospectus:

          (a) the Annual Report on Form 10-KSB for the year ended December 31,
     1995;

          (b) the Quarterly Report on Form 10-QSB for the quarter ended March
     31, 1996; and

          (c) the description of the Common Stock contained in the Registration
     Statement on Form 8-A dated March 11, 1994, and any amendment or report
     filed for the purpose of updating such description filed subsequent to the
     date of this Prospectus and prior to the termination of the offering
     described herein.

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

     The Company will provide without charge to any person to whom this
Prospectus is delivered, upon the written or oral request of such person, a copy
of any or all of the foregoing documents incorporated herein by reference (other
than certain exhibits to such documents). Requests for such copies should be
directed to Lee Lewis, Chief Financial Officer, Ancor Communications,
Incorporated, 6130 Blue Circle Drive, Minnetonka, Minnesota 55343, telephone
number (612) 932-4000.

                                      -2-
<PAGE>
 

                      ANCOR COMMUNICATIONS, INCORPORATED

     Incorporated in 1986, Ancor Communications, Incorporated 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"). Ancor
develops, manufactures, and markets Fibre Channel switches, interface adapters
and application specific integrated circuits ("ASICs").

     In 1992, Ancor delivered its first prototype Fibre Channel switches and
interface adapters. Commercial Fibre Channel switch and interface deliveries
began in 1993. Joint development and marketing alliances and significant
customer relationships have been achieved with major industry players such as
IBM, Hewlett-Packard, AT&T, Sun Microsystems and Sequent Computer Systems, Inc.
Ancor'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 125 Mbps to 1 Gigabit per second, which
is approximately 10 to 100 times faster than the speeds of other existing local
area networks.

     Since it's inception, Ancor's core technology has been built around the
utilization of fiber optic cable for data transmission. Originally, through its
Anderson Cornelius division, the Company provided fiber optic manufacturing data
collection systems to Ford Motor Company. In 1989, Ancor began selling its fiber
optic defense communication products to the U.S. Navy. Its current Fibre Channel
product category was initiated in 1988 when Ancor participated as an original
member of the founding task group of the ANSI committee dedicated to the
creation of the Fibre Channel standard. Today Ancor -- an active member of the
ANSI Fibre Channel committee and the Fibre Channel Association -- focuses
entirely on the development of Fibre Channel solutions.

     Its principal executive offices are located at 6130 Blue Circle Drive,
Minnetonka, Minnesota 55343, (telephone number (612) 932-4000). For further
information concerning Ancor, see the documents incorporated by reference herein
as described under "Incorporation of Certain Documents by Reference."

                                      -3-
<PAGE>
 
                             SELLING SHAREHOLDERS

     The following table sets forth certain information, as of June 4, 1996, as
to the maximum number of Shares that may be sold by each of the Selling
Shareholders pursuant to this Prospectus.

<TABLE> 
<CAPTION>
                                                 Number              Maximum                Number
                                               of Shares              Number               of Shares
                                              Beneficially        of Shares to be         Beneficially
                                              Owned Prior         Sold Pursuant to         Owned After
                 Name                         to Offering         this Prospectus           Offering
   ------------------------------             ------------        ----------------        ------------
  <S>                                         <C>                 <C>                     <C>
   Walter W. Bednarczyk.....................      20,000               20,000(1)                  0
   Donald R. Brattain.......................      50,000               50,000(1)                  0
   Lee Chapman..............................      10,000               10,000(1)                  0
   Christianson Investment Company..........      40,000               40,000(1)                  0
   Six C's Investment Corporation...........      20,000               20,000(1)                  0
   Stan and Carol Eilers....................      11,000               11,000(1)                  0
   Kelly M. Farrell.........................      11,000               11,000(1)                  0
   Founding Partners II Limited                                                              
        Partnership.........................      50,000               50,000(1)                  0
   Wayne Lund...............................      10,000               10,000(1)                  0
   Charles J.B. Mitchell Jr.................      20,000               20,000(1)                  0
   Meridith Lee Christianson                                                                 
        Irrevocable Trust...................       5,454                5,454(1)                  0
   Carolyn T. Rasley Irrevocable Trust......       5,454                5,454(1)                  0
   Allison Christianson Irrevocable Trust...       5,454                5,454(1)                  0
   Stacy A. Christianson Irrevocable Trust..       5,454                5,454(1)                  0
   Michael D. Rasley Irrevocable Trust......       5,454                5,454(1)                  0
   Jennifer R. Higgins Irrevocable Trust....       5,455                5,455(1)                  0
   Christopher Higgins Irrevocable Trust....       5,455                5,455(1)                  0
   Elizabeth Helen Freeman                                                                   
       Irrevocable Trust....................       5,455                5,455(1)                  0
   James G. Freeman, Jr. Irrevocable Trust..       5,455                5,455(1)                  0
   Laura W. Christianson                                                                     
       Irrevocable Trust....................       5,455                5,455(1)                  0
   Kelly Higgins Irrevocable Trust..........       5,455                5,455(1)                  0
   Robert and Louise Schmiege...............      10,000               10,000(1)                  0
   Sekhavat Ltd.............................      10,000               10,000(1)                  0
   James W. Swenson.........................      10,000               10,000(1)                  0
   David and Susan Thymian..................      11,000               11,000(1)                  0
   Charles E. Underbrink....................      10,000               10,000(1)                  0
   Alvin S. Zelickson.......................      10,000               10,000(1)                  0
   William and Catherine Swanson............       5,000                5,000(1)                  0
   H. Vincent O'Connell.....................      20,000               20,000(1)                  0
   H.K. Financial Corporation...............      12,000               12,000(1)                  0
   John G. Kinnard and Company,                                                              
        Incorporated........................     255,500              180,000(2)             75,500
   Jerry Johnson............................       1,500                1,500(2)                  0
   Mike Norton..............................       7,000                7,000(2)                  0
   Joseph Radecki...........................       7,000                7,000(2)                  0
   George Mitchell, Jr......................       1,500                1,500(2)                  0
   Paul Edwards.............................       1,500                1,500(2)                  0
   Ed Elverud...............................       1,500                1,500(2)                  0
   Glen Archer..............................       1,924                1,924(3)                  0
</TABLE> 

                                      -4-
<PAGE>
 
<TABLE> 
<CAPTION> 
  <S>                                         <C>                 <C>                     <C>
   Lance T. Bury............................       3,464                3,464(3)                  0
   P. Bradford Hathorn......................       3,464                3,464(3)                  0
   Michael C. Kendrick......................      27,092               27,092(3)                  0
   Eric S. Swartz...........................      27,093               27,093(3)                  0
   Joseph H. Hale...........................      10,691               10,691(3)                  0
   Enigma Investments Limited...............       4,237                4,237(3)                  0
   Charles Krusen...........................       5,085                5,085(3)                  0
   David K. Peteler.........................       3,000                3,000(3)                  0
   Dwight B. Bronnum........................       1,500                1,500(3)                  0
   Robert L. Hopkins........................       1,500                1,500(3)                  0
</TABLE>

- --------------------
(1)  Represents shares issued upon the exercise of Warrants acquired in
     connection with a private placement of Notes and Warrants pursuant to an
     Offering Memorandum dated as of October 27, 1993.

(2)  Represents shares issued upon the exercise of Warrants granted to John G.
     Kinnard and Company, Inc. in connection with such company's role as
     underwriter for Ancor's initial public offering of Common Stock in May
     1994.

(3)  Represents shares issued upon the exercise of Warrants granted to Swartz
     Investments, L.L.C. in connection with such company's role as placement
     agent for a private placement of Ancor's Series A Preferred Stock in March
     1996.

                             PLAN OF DISTRIBUTION

     The Shares will be offered and sold by the Selling Shareholders for their
own accounts. The Company will not receive any proceeds from the sale of the
Shares pursuant to this Prospectus. The Company has agreed to pay the expenses
of registration of the Shares, including legal and accounting fees.

     The Selling Shareholders may offer and sell the Shares from time to time in
transactions on the Nasdaq SmallCap Market or the Pacific Stock Exchange, in
brokerage transactions at prevailing market prices or in transactions at
negotiated prices. Sales may be made to or through brokers or dealers who may
receive compensation in the form of discounts, concessions or commissions from
the Selling Shareholders or the purchasers of Shares for whom such brokers or
dealers may act as agent or to whom they may sell as principal, or both. As of
the date of this Prospectus, the Company is not aware of any agreement,
arrangement or understanding between any broker or dealer and the Selling
Shareholders.

     The Selling Shareholders and any brokers or dealers acting in connection
with the sale of the Shares hereunder may be deemed to be "underwriters" within
the meaning of Section 2(11) of the Securities Act, and any commissions received
by them and any profit realized by them on the resale of Shares as principals
may be deemed underwriting compensation under the Securities Act.

                                    EXPERTS

     The financial statements of Ancor appearing in the Company's Annual Report
on Form 10-KSB filed March 29, 1996, have been audited by McGladrey & Pullen,
LLP, independent auditors, to the extent set forth in their report included
therein and incorporated herein by reference. Such financial statements are
incorporated herein by reference in reliance upon such report given upon the
authority of such firm as experts in accounting and auditing.

                                 LEGAL MATTERS

     The validity of the Shares offered hereby has been passed upon for the
Company by Dorsey & Whitney LLP, 220 South Sixth Street, Minneapolis, Minnesota
55402.

                                      -5-
<PAGE>
 

                                   PART II.

                    INFORMATION NOT REQUIRED IN PROSPECTUS


   ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

   <TABLE>
   <CAPTION>
   <S>                                  <C>
        SEC Registration Fee..........  $ 6,045
        Accounting Fees and Expenses..    1,000
        Legal Fees and Expenses.......    5,000
                                        -------
             Total....................  $12,045
   </TABLE>

      All fees and expenses other than the SEC registration fee are estimated.
   The expenses listed above will be paid by the Company.

   ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

      Article eight of the Company's Second Amended and Restated Articles of
   Incorporation provides that a director shall not be liable to the Company or
   its stockholders for monetary damages for a breach of fiduciary duty as a
   director, except for liability (i) for any breach of the director's duty of
   loyalty to the Company or its stockholders, (ii) for acts or omissions not in
   good faith or which involve intentional misconduct or a knowing violation of
   law, (iii) under Sections 302A.559 or 80A.23 of the Minnesota Statutes, (iv)
   for any transaction from which the director derived an improper personal
   benefit, or (v) for any act or omission occurring prior to the date when such
   Article eight became effective.

      The Restated Bylaws of the Company provide that the officers and directors
   of the Company and certain others shall be indemnified to substantially the
   same extent permitted by Minnesota law.

      Section 302A.521 of the Minnesota Business Corporation Act provides that a
   corporation shall indemnify any person who was or is made or is threatened to
   be made a party to any proceeding, by reason of the former or present
   official capacity (as defined) of such person, against judgments, penalties,
   fines, settlements and reasonable expenses, including attorneys' fees and
   disbursements, incurred by such person in connection with the proceeding if
   certain statutory standards are met.  "Proceeding" means a threatened,
   pending or complete civil, criminal, administrative, arbitration or
   investigative proceeding, including one by or in the right of the
   corporation.  Section 302A.521 contains detailed terms regarding such right
   of indemnification and reference is made thereto for a complete statement of
   such indemnification rights.

      The Company maintains a standard policy of officers' and directors'
   insurance.

   ITEM 16.  LIST OF EXHIBITS

      5      Opinion of Dorsey & Whitney LLP

      23.1   Consent of McGladrey & Pullen, LLP

      23.2   Consent of Dorsey & Whitney LLP (included in Exhibit 5 to this
             Registration Statement)

      24     Power of Attorney

                                      II-1
<PAGE>
 

   ITEM 17.  UNDERTAKINGS

      The undersigned registrant hereby undertakes:

          (1) To file, during any period in which offers or sales are being
      made, a post-effective amendment to this registration statement:

             (i) To include any prospectus required by section 10(a)(3) of the
          Securities Act of 1933;

             (ii) To reflect in the prospectus any facts or events arising after
          the effective date of the registration statement (or most recent post-
          effective amendment thereof) which, individually or in the aggregate,
          represent a fundamental change in the information set forth in the
          registration statement. Notwithstanding the foregoing, any increase or
          decrease in volume of securities offered (if the total dollar value of
          securities offered would not exceed that which was registered) and any
          deviation from the low or high end of the estimated maximum offering
          range may be reflected in the form of prospectus filed with the
          Commission pursuant to Rule 424(b) if, in the aggregate, the changes
          in volume and price represent no more than a 20% change in the maximum
          aggregate offering price set forth in the "Calculation of Registration
          Fee" table in the effective registration statement;

             (iii) To include any material information with respect to the plan
          of distribution not previously disclosed in the registration statement
          or any material change in the information set forth in the
          registration statement;

          Provided, however, that paragraphs (1)(i) and (1)(ii) do not apply if
          the registration statement is on Form S-3 or Form S-8, and the
          information required to be included in a post-effective amendment by
          those paragraphs is contained in periodic reports filed by the
          registrant pursuant to section 13 or section 15(d) of the Securities
          Exchange Act of 1934 that are incorporated by reference in the
          registration statement.

      The undersigned registrant hereby undertakes that, for purposes of
   determining any liability under the Securities Act of 1933, each filing of
   the registrant's annual report pursuant to Section 13(a) or 15(d) of the
   Securities Exchange Act of 1934 (and, where applicable, each filing of an
   employee benefit plan's annual report pursuant to Section 15(d) of the
   Securities Exchange Act of 1934) that is incorporated by reference in the
   registration statement shall be deemed to be a new registration statement
   relating to the securities offered therein, and the offering of such
   securities at that time shall be deemed to be the initial bona fide offering
   thereof.

      Insofar as indemnification for liabilities arising under the Securities
   Act of 1933 may be permitted to directors, officers, and controlling persons
   of the registrant pursuant to the foregoing provisions, or otherwise, the
   registrant has been advised that, in the opinion of the Securities and
   Exchange Commission, such indemnification is against public policy as
   expressed in the Act and is, therefore, unenforceable. In the event that a
   claim for indemnification against liabilities (other than the payment by the
   registrant of expenses incurred or paid by a director, officer or controlling
   person of the registrant in the successful defense of any action, suit or
   proceeding) is asserted by such director, officer or controlling person in
   connection with the securities being registered, the registrant will, unless
   in the opinion of its counsel the matter has been settled by controlling
   precedent, submit to a court of appropriate jurisdiction the question whether
   such indemnification by it is against public policy as expressed in the Act
   and will be governed by the final adjudication of such issue.

                                     II-2
<PAGE>
 

                                  SIGNATURES

      Pursuant to the requirements of the Securities Act of 1933, the registrant
   certifies that it has reasonable grounds to believe that it meets all of the
   requirements for filing on Form S-3 and has duly caused this registration
   statement to be signed on its behalf by the undersigned, thereunto duly
   authorized, in the City of Minneapolis, State of Minnesota, on June 5, 1996.

                                    ANCOR COMMUNICATIONS, INCORPORATED



                                    By /s/ Stephen C. O'Hara
                                       ---------------------------------
                                       Stephen C. O'Hara
                                       President and Chief
                                       Executive Officer


      Pursuant to the requirements of the Securities Act of 1933, this
   registration statement has been signed by the following persons in the
   capacities indicated on June 5, 1996.


   Signature                                Title
   ---------                                -----

   /s/ Stephen C. O'Hara                    President, Chief Executive
   ---------------------------              Officer and Director (principal
   Stephen C. O'Hara                        executive officer)


   /s/ Lee B. Lewis                         Chief Financial Officer
   ---------------------------              (principal financial officer)
   Lee B. Lewis                                    
                                
                                                         
              *                             Chairman of the Board
   ---------------------------                                   
   Dale C. Showers

                                            Director
   ---------------------------           
   Gerald M. Bestler


              *                             Director
   ---------------------------                      
   Thomas F. Hunt, Jr.



   *By /s/ Stephen C. O'Hara
       -----------------------
       Stephen C. O'Hara

                                     II-3

<PAGE>
 

                                                                     Exhibit 5

                       [Dorsey & Whitney LLP Letterhead]



   Ancor Communications, Inc.
   6130 Blue Circle Drive
   Minnetonka, Minnesota 55343

             Re:  Registration Statement on Form S-3

   Ladies and Gentlemen:

             We have acted as counsel to Ancor Communications, Inc., a Minnesota
   corporation (the "Company"), in connection with a Registration Statement on
   Form S-3 (the "Registration Statement") to be filed with the Securities and
   Exchange Commission under the Securities Act of 1933, as amended, relating to
   the sale of 689,050 shares (the "Shares") of common stock of the Company, par
   value $.01 per share, which will be sold from time to time by the persons
   named in the Registration Statement (the "Selling Shareholders") on the
   Nasdaq SmallCap Market, the Pacific Stock Exchange or otherwise, directly or
   through underwriters, brokers or dealers.

             We have examined such documents and have reviewed such questions of
   law as we have considered necessary and appropriate for the purposes of our
   opinions set forth below.  In rendering our opinions set forth below, we have
   assumed the authenticity of all documents submitted to us as originals, the
   genuineness of all signatures and the conformity to authentic originals of
   all documents submitted to us as copies.  We have also assumed the legal
   capacity for all purposes relevant hereto of all natural persons and, with
   respect to all parties to agreements or instruments relevant hereto other
   than the Company, that such parties had the requisite power and authority
   (corporate or otherwise) to execute, deliver and perform such agreements or
   instruments, that such agreements or instruments have been duly authorized by
   all requisite action (corporate or otherwise), executed and delivered by such
   parties and that such agreements or instruments are the valid, binding and
   enforceable obligations of such parties.  As to questions of fact material to
   our opinions, we have relied upon certificates of officers of the Company and
   of public officials.

             Based on the foregoing, we are of the opinion that the Shares to be
   sold by the Selling Shareholders pursuant to the Registration Statement, upon
   issuance, delivery and payment therefore in accordance with the terms of the
   warrants under which the Shares are to be issued, will be duly authorized by
   all requisite corporate action, validly issued, fully paid and nonassessable.

             Our opinions expressed above are limited to the laws of the State
   of Minnesota.

             We hereby consent to the filing of this opinion as an exhibit to
   the Registration Statement, and to the reference to our firm under the
   heading "Legal Matters" in the Prospectus constituting part of the
   Registration Statement.

   Dated: June 5, 1996
 
                                       Very truly yours,

                                       /s/ DORSEY & WHITNEY LLP

   MT

<PAGE>
 

                                                                  Exhibit 23.1

                         INDEPENDENT AUDITOR'S CONSENT


   We hereby consent to the incorporation by reference in this Form S-3
   Registration Statement of our report dated March 12, 1996, on the financial
   statements of Ancor Communications, Incorporated (the "Registrant"), which
   report and statements appear, or are incorporated by reference, in the
   Registrant's Annual Report on Form 10-KSB for the year ended December 31,
   1995 and to the reference to our Firm under the caption "Experts" in this
   Form S-3 Registration Statement.


 

   /s/ McGLADREY & PULLEN, LLP
   St. Paul, Minnesota
   June 5, 1996

<PAGE>
 

                                                                    Exhibit 24

                               POWER OF ATTORNEY

        KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
   appears below hereby constitutes and appoints Stephen C. O'Hara and Lee B.
   Lewis, his true and lawful attorneys-in-fact and agents, with full powers of
   substitution and resubstitution, for him and in his name, place and stead, in
   any and all capacities to execute a Registration Statement on Form S-3 to be
   filed under the Securities Act of 1933, as amended, for the registration the
   resale of 689,050 shares of Common Stock of Ancor Communications,
   Incorporated to be issued in connection with the exercise of certain
   outstanding warrants, and any and all post-effective amendments thereto, and
   to file the same, with all exhibits thereto, and other documents in
   connection therewith, with the Securities and Exchange Commission, granting
   unto said attorneys-in-fact and agents full power and authority to do and
   perform to all intents and purposes as he might or could do in person, hereby
   ratifying and confirming all that said attorneys-in-fact and agents, or their
   substitutes, may lawfully do or cause to be done by virtue hereof.

   Dated:  May 31, 1996


   /s/ Stephen C. O'Hara
   --------------------------                    -----------------------------
   Stephen C. O'Hara                             Gerald M. Bestler
                                      
                                      
   /s/ Dale C. Showers                           /s/ Thomas F. Hunt, Jr.
   --------------------------                    -----------------------------
   Dale C. Showers                               Thomas F. Hunt, Jr.


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