Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Steel Partners II Master Fund L.P.
 2. Date of Event Requiring Statement (Month/Day/Year)
12/28/2007		 3. Issuer Name and Ticker or Trading Symbol
ADAPTEC INC [ADPT]
(Last)
(First)
(Middle)
MORGAN STANLEY FUND SERVICES LTD, CRICKET SQ FL2 BOUNDARY HALL HUTCHINS DR		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

BOX 2681 GRAND CAYMAN KY1-1111,  		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock, $.001 Par Value 18,159,884
I (1) (2)
By Steel Partners II, L.P.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Steel Partners II Master Fund L.P.
MORGAN STANLEY FUND SERVICES LTD
CRICKET SQ FL2 BOUNDARY HALL HUTCHINS DR
BOX 2681 GRAND CAYMAN KY1-1111 		     X    
Steel Partners LLC
590 MADISON AVENUE
32ND FLOOR
NEW YORK, NY 10022		     X    

Signatures

By: Steel Partners II Master Fund L.P., By: Steel Partners II GP LLC, General Partner, By: /s/ Lauren Isenman, as Attorney In Fact for Warren G. Lichtenstein, Managing Member 12/31/2007
**Signature of Reporting Person Date
By: Steel Partners LLC, By: /s/ Lauren Isenman, as Attorney In Fact for Warren G. Lichtenstein, Manager 12/31/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) This Form 3 is being filed due to a reorganization of Steel Partners II, L.P. ("Steel Partners II") and its affiliates, as a result of which Steel Partners II Master Fund L.P. ("Steel Master") and Steel Partners LLC ("Partners LLC") may now be deemed to beneficially own securities of the Issuer owned by Steel Partners II. The securities reported in this Form 3 are owned directly by Steel Partners II, and owned indirectly by Steel Master by virtue of it being the sole limited partner of Steel Partners II and by Partners LLC by virtue of it being the investment manager of Steel Partners II. The securities reported in this Form 3 continue to be owned indirectly by Steel Partners II GP LLC (formerly Steel Partners, L.L.C.) and Warren Lichtenstein, each of whom previously jointly filed with Steel Partners II Section 16 filings with respect to securities of the Issuer owned directly by Steel Partners II.
(2) Steel Master and Partners LLC disclaim beneficial ownership of the securities owned by Steel Partners II except to the extent of their pecuniary interest therein.

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