As filed with the Securities and Exchange Commission on October 19, 2001
                                                  Registration No. _____________
================================================================================

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

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

                                    FORM S-8
                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933

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

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

               Delaware                                     77-0487526
    (State or other jurisdiction of                        (IRS Employer
    incorporation or organization)                      Identification No.)

                              2450 Bayshore Parkway
                         Mountain View, California 94043
               (Address of principal executive offices) (Zip Code)

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

                                  EQUINIX, INC.
                          2001 Supplemental Stock Plan
                            (Full title of the Plan)

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

                                 RENEE F. LANAM
                                 General Counsel
                                  EQUINIX, INC.
                              2450 Bayshore Parkway
                             Mountain View, CA 94043
                     (Name and address of agent for service)
                                 (650) 316-6000
          (Telephone number, including area code, of agent for service)

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

                         CALCULATION OF REGISTRATION FEE



======================================================================================================================
                                                             Proposed Maximum   Proposed Maximum
                                            Amount to be      Offering Price       Aggregate           Amount of
Title of Securities to be Registered        Registered(1)      per Share(2)     Offering Price(2)     Registration Fee
------------------------------------------ ---------------- ------------------- ------------------- ------------------
                                                                                        
2001 Supplemental Stock Plan
----------------------------

Options to Purchase Common Stock              5,000,000            N/A                 N/A                N/A
Common Stock, $0.001 par value             5,000,000 shares       $0.49            $2,450,000           $612.50


======================================================================================================================


(1)      This Registration Statement shall also cover any additional shares of
         Common Stock which become issuable under the 2001 Supplemental Stock
         Plan by reason of any stock dividend, stock split, recapitalization or
         other similar transaction effected without the receipt of consideration
         which results in an increase in the number of the outstanding shares of
         Common Stock of Equinix, Inc.



     (2)  Calculated solely for purposes of this offering under Rule 457(h) of
          the Securities Act of 1933, as amended, on the basis of the average of
          the high and low prices per share of Common Stock of Equinix, Inc. on
          October 12, 2001.



                                     PART II

               Information Required in the Registration Statement

     Item 3  Incorporation of Documents by Reference

             Equinix, Inc. (the "Registrant") hereby incorporates by reference
     into this Registration Statement the following documents previously filed
     with the Securities and Exchange Commission (the "SEC"):

             (a)  The Registrant's Annual Report on Form 10-K filed with the SEC
             for the fiscal year ended December 31, 2000;

             (b)  The Registrant's Quarterly Reports on Form 10-Q filed with the
             SEC for the three months ended March 31, 2001 and June 30, 2001;

             (c)  The description of the Registrant's outstanding Common Stock
             contained in the Registrant's Registration Statement No. 000-31293
             on Form 8-A filed with the SEC on August 9, 2000, pursuant to
             Section 12 of the Securities Act of 1934, as amended (the "1934
             Act"), including any amendment or report filed for the purpose of
             updating such description.

             All reports and definitive proxy or information statements filed
     pursuant to Section 13(a), 13(c), 14 or 15(d) of the 1934 Act after the
     date of this Registration Statement and prior to the filing of a
     post-effective amendment which indicates that all securities offered hereby
     have been sold or which deregisters all securities then remaining unsold
     shall be deemed to be incorporated by reference into this Registration
     Statement and to be a part hereof from the date of filing of such
     documents.

             (d) Description of Securities
                 -------------------------

             Not Applicable.

             (e) Interests of Named Experts and Counsel
                 --------------------------------------

             Not Applicable.

             (f) Indemnification of Directors and Officers
                 -----------------------------------------

             Section 145 of the Delaware General Corporation Law authorizes a
     court to award or a corporation's Board of Directors to grant
     indemnification to directors and officers in terms sufficiently broad to
     permit such indemnification under certain circumstances for liabilities
     (including reimbursement for expenses incurred) arising under the 1933 Act.
     The Registrant's Bylaws provide for mandatory indemnification of its
     directors and permissible indemnification of officers, employees and other
     agents to the maximum extent permitted by the Delaware General Corporation
     Law. The Registrant's Certificate of Incorporation provides that, pursuant
     to Delaware law, its directors shall not be liable for monetary damages for
     breach of their fiduciary duty as directors to the Registrant and its
     stockholders. This provision in the Certificate of Incorporation does not
     eliminate the fiduciary duty of the directors, and, in appropriate
     circumstances, equitable remedies such as injunctive or other forms of
     non-monetary relief will remain available under Delaware law. In addition,
     each director will continue to be subject to liability for breach of the
     director's duty of loyalty to the Registrant for acts or omissions not in
     good faith or involving intentional misconduct, for knowing violations of
     law, for actions leading to improper personal benefit to the director and
     for payment of dividends or approval of stock repurchases or redemptions
     that are unlawful under Delaware law. The provision also does not affect a
     director's responsibilities under any other law, such as the federal
     securities laws or state or federal environmental laws. The Registrant has
     entered into Indemnification Agreements with its directors. The
     Indemnification Agreements provide the Registrant's directors with further
     indemnification to the maximum extent permitted by the Delaware General
     Corporation Law.

                                      II-1



        (g) Exemption from Registration Claimed
            -----------------------------------

        Not Applicable.

        (h) Exhibits

Exhibit Number    Exhibit
--------------    -------

       4          Instrument Defining Rights of Stockholders. Reference is
                  made to Equinix, Inc.'s Registration Statement No.
                  000-31293 on Form 8-A, which is incorporated herein by
                  reference under Item 3(c) of this Registration Statement.
       5          Opinion and consent of Equinix, Inc. General Counsel.
      23.1        Consent of PricewaterhouseCoopers LLP, Independent
                  Accountants.
      23.2        Consent of Equinix, Inc. is contained in Exhibit 5.
       24         Power of Attorney. Reference is made to page II-3 of this
                  Registration Statement.


        (i) Undertakings
            ------------

                  A. 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 1933 Act, (ii) to reflect in the prospectus any facts
or events arising after the effective date of this Registration Statement (or
the most recent post-effective amendment thereof) which, individually or in the
aggregate, represent a fundamental change in the information set forth in this
Registration Statement and (iii) to include any material information with
respect to the plan of distribution not previously disclosed in this
Registration Statement or any material change to such information in this
Registration Statement; provided, however, that clauses (1)(i) and (1)(ii) shall
not apply if the information required to be included in a post-effective
amendment by those paragraphs is contained in periodic reports filed with or
furnished to the SEC by the Registrant pursuant to Section 13 or Section 15(d)
of the 1934 Act that are incorporated by reference in this Registration
Statement; (2) that for the purpose of determining any liability under the 1933
Act each such post-effective amendment 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 and (3) to remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the Registrant's 2001 Supplemental Stock Plan.

                  B. The undersigned Registrant hereby undertakes that, for
purposes of determining any liability under the 1933 Act, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
1934 Act that is incorporated by reference in this 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.

                  C. Insofar as indemnification for liabilities arising under
the 1933 Act may be permitted to directors, officers or controlling persons of
the Registrant pursuant to the indemnification provisions summarized in Item 6
or otherwise, the Registrant has been advised that, in the opinion of the SEC,
such indemnification is against public policy as expressed in the 1933 Act, and
is, therefore, unenforceable. In the event that a claim for indemnification
against such 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 1933 Act and will be governed by the final
adjudication of such issue.

                                      II-2



                                   SIGNATURES

                  Pursuant to the requirements of the Securities Act of 1933, as
amended, the Registrant certifies that it has reasonable grounds to believe that
it meets all of the requirements for filing on Form S-8 and has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Mountain View, State of California on this 19th
day of October 2001.

                                     EQUINIX, INC.

                                     By: /s/ Peter F. Van Camp
                                         ---------------------------------------
                                         Peter F. Van Camp
                                         Chairman of the Board and Chief
                                         Executive Officer

                                POWER OF ATTORNEY
                                -----------------

KNOW ALL PERSONS BY THESE PRESENTS:

                  That the undersigned officers and directors of Equinix, Inc.,
a Delaware corporation, do hereby constitute and appoint Peter F. Van Camp and
Keith D. Taylor, and either of them, the lawful attorneys-in-fact and agents
with full power and authority to do any and all acts and things and to execute
any and all instruments which said attorneys and agents, and either one of them,
determine may be necessary or advisable or required to enable said corporation
to comply with the Securities Act of 1933, as amended, and any rules or
regulations or requirements of the Securities and Exchange Commission in
connection with this Registration Statement. Without limiting the generality of
the foregoing power and authority, the powers granted include the power and
authority to sign the names of the undersigned officers and directors in the
capacities indicated below to this Registration Statement, to any and all
amendments, both pre-effective and post-effective, and supplements to this
Registration Statement, and to any and all instruments or documents filed as
part of or in conjunction with this Registration Statement or amendments or
supplements thereof, and each of the undersigned hereby ratifies and confirms
all that said attorneys and agents, or either one of them, shall do or cause to
be done by virtue hereof. This Power of Attorney may be signed in several
counterparts.

                  IN WITNESS WHEREOF, each of the undersigned has executed this
Power of Attorney as of the date indicated.

                  Pursuant to the requirements of the Securities Act of 1933, as
amended, this Registration Statement has been signed below by the following
persons in the capacities and on the dates indicated.

         Signature                         Title                       Date
         ---------                         -----                       ----

                             Chairman of the Board and Chief
 /s/ Peter F. Van Camp        Executive Officer (Principal      October 19, 2001
___________________________        Executive Officer)
     Peter F. Van Camp


 /s/ Keith D. Taylor         Vice President, Finance (Principal October 19, 2001
___________________________   Financial and Accounting Officer)
     Keith D. Taylor

                                      II-3



           Signature                         Title                   Date
           ---------                         -----                   ----
  /s/ Albert M. Avery, IV
________________________________   Vice Chairman of the Board   October 19, 2001
      Albert M. Avery, IV

     /s/ Scott Kriens
________________________________            Director            October 19, 2001
         Scott Kriens

  /s/ Andrew S. Rachleff
________________________________            Director            October 19, 2001
      Andrew S. Rachleff

    /s/ John G. Taysom
________________________________            Director            October 19, 2001
        John G. Taysom

  /s/ Michelangelo Volpi
________________________________            Director            October 19, 2001
      Michelangelo Volpi

                                      II-4



                                  EXHIBIT INDEX
                                  -------------

   Exhibit Number    Exhibit
   --------------    -------

         4           Instrument Defining Rights of Stockholders. Reference is
                     made to Equinix, Inc.'s Registration Statement No.
                     000-31293 on Form 8-A, which is incorporated herein by
                     reference under Item 3(c) of this Registration Statement.
         5           Opinion and consent of Equinix, Inc. General Counsel.
        23.1         Consent of PricewaterhouseCoopers LLP, Independent
                     Accountants.
        23.2         Consent of Equinix, Inc. is contained in Exhibit 5.
         24          Power of Attorney. Reference is made to page II-3 of this
                     Registration Statement.