SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Crossover Fund V Management, L.L.C. (Last) (First) (Middle) TWO EMBARCADERO CENTER SUITE 2200 (Street) SAN FRANCISCO CA 94111 (City) (State) (Zip)	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
	3. Date of Earliest Transaction (Month/Day/Year) 02/21/2008
	4. If Amendment, Date of Original Filed (Month/Day/Year) 02/21/2008	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

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	02/21/2008		P		112,363	A	$70.27	475,865	I	See Notes(1)(2)(3)(4)
Common Stock	02/22/2008		P		119,600	A	$70.11	595,465	I	See Notes(1)(2)(3)(4)

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 Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. The reporting persons (the "Reporting Persons") are Crosslink Capital, Inc. ("Crosslink"), Crosslink Ventures IV Holdings, L.L.C. ("Ventures IV Holdings"), Crosslink Verwaltungs GmbH ("Verwaltungs"), Crossover Fund IV Management, L.L.C. ("Crossover IV Management"), Crossover Fund V Management, L.L.C. ("Crossover V Management"), Delta Growth Management, LLC ("Delta Growth Management") and Ten Mile Management, LLC ("Ten Mile Management"), Michael J. Stark, James Feuille, Daniel John Dunn, Thomas Edward Bliska, Peter D. Rip, Alain S. Harrus, Bruce MacNaughton and Gary Hromadko. Crosslink is an investment adviser to investment funds of which Ventures IV Holdings, Verwaltungs, Crossover IV Management, Crossover V Management, Delta Growth Management or Ten Mile Management is the general partner, manager or the holder of Class B Units, and other investment funds.

2. Mr. Stark is the control person of Crosslink, Verwaltungs, Delta Growth Management and Crossover V Management. Mr. Stark, Mr. Bliska, Mr. Dunn, Mr. Feuille, Mr. Rip, Mr. Harrus and Mr. MacNaughton are the control persons of Ventures IV Holdings. Mr. Stark, Mr. Bliska, Mr. Dunn, Mr. Feuille and Mr. MacNaughton are control persons of Crossover IV Management. Mr. Stark and Mr. Bliska are the control persons of Ten Mile Management. Mr. Hromadko is a member of the Issuer's board of directors and serves as the representative of the Reporting Persons.

3. Reporting Persons are filing this Form 4 jointly, but not as a group, and each of them expressly disclaims membership in a group, within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. These securities are held directly by investment funds to which Crosslink is investment adviser (the "Funds") for the benefit of the investors in the Funds.

4. These securities are indirectly beneficially owned by Crosslink as the investment adviser to the Funds by Ventures IV Holdings and Verwaltungs, Crossover IV Management, Crossover V Management, Delta Growth Management or Ten Mile Management as the general partner, manager or holder of Class B Units of the Funds, and by 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.

	Crossover Fund V Management, L.L.C., by Michael J. Stark, Senior Fund Manager	02/25/2008
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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