Equinix (EQIX) 8-K Equinix Completes Acquisition of European Data Center Provider Ixeurope

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in Registration Statements on Forms S-8 (Nos. 333-45280, 333-58074, 333-71870, 333-85202, 333-104078, 333-113765, 333-117892, 333-122142 and 333-132466) and Form S-3 (Nos. 333-104077, 333-108783, 333-109697, 333-114723, 333-116322, 333-120224, 333-122144, 333-123923 and 333-128857) of Equinix, Inc., of our report dated 5 March 2007 except for Note 27 which is as of 12 September 2007, relating to the consolidated financial statements of IXEurope plc which appears in this Form 8-K.

BDO Stoy Hayward LLP

London

14 September 2007