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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K
                                 CURRENT REPORT

     PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

       Date of Report (Date of earliest event reported) December 22, 1999


                                  ADAPTEC, INC.
             (Exact name of registrant as specified in its charter)


         Delaware                   0-15071                   94-2748530
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(State of Incorporation)   (Commission File Number)        (I.R.S. Employer
                                                        Indentification Number)

                              691 S. MILPITAS BLVD.
                               MILPITAS, CA 95035
                    (Address of principal executive offices)

                                 (408) 945-8600
              (Registrants' telephone number, including area code)


                                 Not Applicable
     (Former name, former address and former fiscal year, if changed since
                                  last report)


This document consists of 4 pages, excluding exhibits, of which this is page 1.


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ITEM 2.  ACQUISITION OR DISPOSITION OF ASSETS

(a)  On December 22, 1999, Adaptec, Inc. ("Adaptec"), a Delaware corporation,
     acquired Distributed Processing Technology Corp. ("DPT"), a Florida
     corporation. The transaction was effected pursuant to an Agreement and
     Plan of Reorganization, dated as of December 3, 1999 (the "Agreement"),
     by and among Adaptec, DPT, Adaptec Mfg. (S) Pte. Ltd., a wholly-owned
     subsidiary of Adaptec, Adaptec Acquisition Corp. ("Merger Sub"), a
     Florida corporation and wholly-owned subsidiary of Adaptec, and Stephen
     H. Goldman ("Stockholder"), the principal stockholder of DPT. In
     accordance with the Agreement, Merger Sub was merged with and into DPT;
     DPT was the surviving corporation and became a wholly-owned subsidiary
     of Adaptec.

     The purchase price consisted of approximately $185.2 million of cash
     (including $18.5 million reserved by Adaptec to cover possible breaches
     of the representations and warranties made by DPT and Stockholder
     pursuant to the Agreement), and the issuance of approximately 1.1
     million options to purchase Adaptec common stock valued at approximately
     $51.8 million. The cash was in exchange for all of the outstanding
     common stock of DPT as of the date of the acquisition date
     (approximately 5.2 million shares) and was paid through the use of
     Adaptec's general corporate funds. The Adaptec common stock options were
     issued in exchange for outstanding DPT common stock options. The fair
     value of the Adaptec common stock options was computed using the
     Black-Scholes model on the date the transaction was consummated (also the
     date that the number of options issued and the exercise price of the
     options became determinable). Additionally, the Company estimates
     approximately $1.1 million in professional fees will be incurred related
     to this acquisition, including finance, accounting, legal and appraisal
     fees, which have been accrued and capitalized as part of the purchase
     price of the transaction.

     The purchase price was determined through a series of arms length
     negotiations between officers, representatives, and the Board of
     Directors of Adaptec and DPT. There were no material relationships
     between such persons and Adaptec or any of its affiliates, any director
     or officer of Adaptec, or any associate of any such director or officer.
     Effective upon the closing, Stockholder became an officer of Adaptec.

     DPT's net assets consist of cash, receivables, inventory, property and
     equipment, other tangible and intangible assets and various liabilities.
     In accordance the purchase method of accounting for business
     combinations, the purchase price and associated charges will be
     allocated among the identifiable net tangible assets and intangible
     assets of DPT based on their fair market value at the acquisition date.
     Any excess purchase price will be allocated to goodwill.

     The closing of the acquisition was announced by Adaptec in a press
     release dated December 23, 1999, a copy of which is filed as an exhibit
     hereto.

(b)  The acquisition by Adaptec of DPT is deemed the indirect acquisition of
     the assets of DPT, including DPT's plant, equipment and other physical
     property. DPT utilized such assets in the conduct of its business as a
     supplier of high performance storage solutions. Adaptec will continue to
     utilize such assets in the conduct of its RAID business segment, which
     designs, develops, manufactures and markets bus-based and
     microprocessor-based RAID solutions utilized from entry level
     workstations to enterprise-class servers.




ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

(A)  FINANCIAL STATEMENTS OF BUSINESS ACQUIRED, PURSUANT TO RULE 3-05 OF
     REGULATIONS S-X:

     The required financial statements of the business acquired pursuant to
     Rule 3-05 of Regulation S-X are unavailable as of the date of this
     filing. Such information will be filed as an amendment to this Form 8-K
     under cover of Form 8-K/A on or before the required filing date.

(B)  PRO FORMA FINANCIAL INFORMATION REQUIRED PURSUANT TO ARTICLE 11 OF
     REGULATIONS S-X:

     The pro forma financial statements required pursuant to Article 11 of
     Regulation S-X are unavailable as of the date of this filing. Such
     information will be filed as an amendment to this Form 8-K under cover
     of Form 8-K/A on or before the required filing date.

(C)  EXHIBITS IN ACCORDANCE WITH ITEM 601 OF REGULATION S-K:

     EXHIBIT NO.   DESCRIPTION

     2.1           Agreement and Plan of Reorganization, dated as of December
                   3, 1999 by and among Adaptec, Inc., Adaptec Mfg. (S) Pte.
                   Ltd., Adaptec Acquisition Corp., Distributed Processing
                   Technology Corp., and Stephen H. Goldman.

     99.1          Press Release dated December 23, 1999.




                        SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

ADAPTEC, INC.

BY:          /s/ ANDREW J. BROWN                     DATE: January 6, 2000
     -----------------------------------
         Andrew J. Brown
         VICE PRESIDENT, FINANCE
         CHIEF FINANCIAL OFFICER
         (PRINCIPAL FINANCIAL OFFICER)


BY:          /s/ KENNETH B. AROLA                    DATE: January 6, 2000
     -----------------------------------
         Kenneth B. Arola
         VICE PRESIDENT
         CORPORATE CONTROLLER
         (PRINCIPAL ACCOUNTING OFFICER)