DIGITAL REALTY TRUST, INC. 10,000,000 Shares ($0.01 par value per share) Underwriting AgreementDigital Realty Trust, Inc. • September 15th, 2011 • Real estate investment trusts • New York
Digital Realty Trust, Inc., a corporation organized under the laws of the State of Maryland (the “Company”), proposes to sell to the several underwriters named in Schedule II hereto (the “Underwriters”), for whom you (the “Representatives”) are acting as representatives, the number of shares of 7.000% Series E Cumulative Redeemable Preferred Stock, $0.01 par value per share (“Preferred Stock”), of the Company set forth in Schedule I hereto (said shares to be issued and sold by the Company being hereinafter called the “Underwritten Securities”). The Company also proposes to grant to the Underwriters an option to purchase up to the number of additional shares of Preferred Stock set forth in Schedule I hereto to cover over-allotments (the “Option Securities”; the Option Securities, together with the Underwritten Securities, being hereinafter called the “Securities”). To the extent there are no additional Underwriters listed on Schedule II other than you, the term Representatives as used h
