Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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 *
CROSSLINK CAPITAL INC
   2. Issuer Name and Ticker or Trading Symbol
EQUINIX INC [EQIX] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
Affiliate of Director
(Last)
(First)
(Middle)
TWO EMBARCADERO CENTER, SUITE 2200		 3. Date of Earliest Transaction (Month/Day/Year)
05/10/2006
(Street)

SAN FRANCISCO, CA 94111		 4. If Amendment, Date Original Filed(Month/Day/Year)
 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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 05/10/2006   S   16,103 D $ 65.65 738,300 I See Notes (1) (2) (3) (4)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
CROSSLINK CAPITAL INC
TWO EMBARCADERO CENTER
SUITE 2200
SAN FRANCISCO, CA 94111		   X     Affiliate of Director
CROSSOVER FUND III MANAGMENT LLC

 		   X     Affiliate of Director
CROSSLINK VENTURES IV HOLDINGS LLC

 		   X     Affiliate of Director
CROSSLINK VERWALTUNGS GMBH

 		   X     Affiliate of Director

Signatures

 Crosslink Capital, Inc. by Michael J. Stark, President   05/12/2006
**Signature of Reporting Person Date
 Crossover Fund III Management,L.L.C., by Michael J. Stark, Senior Fund Manager   05/12/2006
**Signature of Reporting Person Date
 Crosslink Ventures IV Holdings, L.L.C. by Michael J. Stark, Senior Fund Manager   05/12/2006
**Signature of Reporting Person Date
 Crosslink Verwaltungs GmbH by Michael J. Stark, Managing Director   05/12/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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) The reporting persons (the "Reporting Persons") are Crosslink Capital, Inc. ("Crosslink"), Crossover Fund III Management, L.L.C. ("Crossover III Management"), Crosslink Ventures IV Holdings, L.L.C. ("Ventures IV Holdings"), Crosslink Verwaltungs GmbH ("Verwaltungs"), Michael J. Stark, Seymour F. Kaufman, James Feuille, David I. Epstein, Daniel John Dunn, Thomas Edward Bliska and Gary Hromadko. Crosslink is an investment adviser to investment funds of which Crossover III Management, Ventures IV Holdings or Verwaltungs is the general partner, manager or the holder of Class B Units, and other investment funds. Crossover III Management is also the investment adviser to investment funds.
(2) Mr. Stark and Mr. Kaufman are control persons of Crosslink. Mr. Stark, Mr. Kaufman, Mr. Bliska, Mr. Dunn, Mr. Feuille and Mr. Epstein are control persons of Crossover III Management. Mr. Stark is a control person of Ventures IV Holdings and Verwaltungs. Mr. Hromadko is a member of the Issuer's board of directors and serves as the representative of the Reporting Persons.
(3) Crosslink, Crossover III Management, Ventures IV Holdings, Verwaltungs, Mr. Stark, Mr. Kaufman, Mr. Feuille, Mr. Epstein, Mr. Dunn, Mr. Bliska and Mr. Hromadko are filing this Form 4 jointly and constitute a group, within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934, as amended, but disclaim membership in a group with any other person. These securities are held directly by investment funds to which Crosslink or Crossover III Management is investment adviser (the "Funds") for the benefit of the investors in the Funds.
(4) These securities are indirectly beneficially owned by Crosslink or Crossover III Management as the investment adviser to the Funds, by Crossover III Management, Ventures IV Holdings and Verwaltungs as the general partner, manager or holder of Class B Units of the Funds, and by Mr. Stark, Mr. Kaufman, Mr. Feuille, Mr. Epstein, Mr. Bliska and Mr. Dunn as the various control persons of those entities. The Reporting Persons disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

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