SAN FRANCISCO, Jan. 21 /PRNewswire-FirstCall/ -- Digital Realty Trust, Inc. (NYSE: DLR), the leading owner and manager of corporate and Internet gateway datacenters, has completed a new Turn-Key Datacenter(TM) lease agreement with T-Systems (www.t-systems.com), the global information and communications technology company, to establish a new datacenter in Digital Realty Trust's 2055 E. Technology Circle in Tempe, Arizona. This further expands Digital Realty Trust's relationship with T-Systems, which has signed four prior Turn-Key Datacenter(TM) agreements with Digital Realty Trust.

T-Systems is Deutsche Telekom's enterprise customer unit. Multinational corporations and public institutions use the provider's network-centric information and communications technology (ICT) services - ranging from datacenter operations and global services based on the Internet Protocol, to the development and management of applications. With locations in over 20 countries, T-Systems is a preferred supplier for Corporate Europe's global business activities. The company serves all industries and is a leading provider for the automotive and telecommunications industries as well as the public sector.

"Digital Realty Trust offers customers a growing portfolio of outstanding facilities in key global markets, supported by an operational team with deep industry expertise. This new agreement with T-Systems is a great validation of our unique value proposition and our commitment to being a true partner to our customers," said Chris Crosby, Senior Vice President at Digital Realty Trust. "We look forward to continuing to support T-Systems' business needs in our facilities as it expands its computing and networking infrastructure to support its growing global customer base."

Digital Realty Trust Turn-Key Datacenter(TM) facilities provide state-of-the-art environments for supporting mission critical infrastructure, with advanced cooling, power, redundancy, and sustainability features to ensure that critical applications are available while optimizing energy efficiency. Digital Realty Trust's Turn-Key Datacenters(TM) are scalable from hundreds of kilowatts of IT load to megawatts of IT load and are located in markets throughout North America and Europe. Each Turn-Key Datacenter(TM) facility is physically secure and features a state-of-the-art power and cooling architecture that has been optimized for green operation. Every Turn-Key Datacenter(TM) is built using the company's proprietary POD Architecture(TM) and uses metered power to ensure that clients pay only for the power that they use.

About Digital Realty Trust, Inc.

Digital Realty Trust, Inc. owns, acquires, redevelops, develops and manages technology-related real estate. The Company is focused on providing Turn-Key Datacenter(TM) and Powered Base Building(TM) datacenter solutions for domestic and international tenants across a variety of industry verticals ranging from information technology and internet enterprises, to manufacturing and financial services. Digital Realty Trust's 74 properties, excluding one property held as an investment in an unconsolidated joint venture, contain applications and operations critical to the day-to-day operations of technology industry tenants and corporate enterprise datacenter tenants. Comprising approximately 12.9 million rentable square feet as of November 5, 2008, including 1.6 million square feet of space held for redevelopment, Digital Realty Trust's portfolio is located in 27 markets throughout North America and Europe. For additional information, please visit Digital Realty Trust's website at http://www.digitalrealtytrust.com.

SafeHarbor Statement

This press release contains forward-looking statements which are based on current expectations, forecasts and assumptions that involve risks and uncertainties that could cause actual outcomes and results to differ materially. These risks and uncertainties include adverse economic or real estate developments in the Company's markets; general economic slow-downs or recessions; reductions in information technology spending; difficulties in or inability to lease space, including redeveloped space; construction and development delays; increased development costs; tenant bankruptcies or defaults under leases by tenants; failure to commence rental payments on time under signed leases; increased interest rates; increased operating costs; failure to obtain necessary outside financing; decreased rental rates or increased vacancy rates; difficulties in identifying properties to acquire; completing acquisitions at all or at acceptable return levels; failure to successfully operate properties; failure of existing, acquired or redeveloped properties to perform as expected; reductions in property values; failure to maintain the Company's status as a REIT; environmental uncertainties and risks related to natural disasters; financial market fluctuations; changes in foreign currency exchange rates; risks of operating in foreign markets; and changes in real estate and zoning laws and increases in real property tax rates. For a further list and description of such risks and uncertainties, see the reports and other filings by the Company with the United States Securities and Exchange Commission, including the Company's annual report on Form 10-K for the year ended December 31, 2007 and the Company's quarterly reports on Form 10-Q for the quarters ended March 31, 2008, June 30, 2008 and September 30, 2008. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

    For Additional Information:

    A. William Stein                Pamela A. Matthews
    Chief Financial Officer and     Investor/Analyst Information
    Chief Investment Officer        Digital Realty Trust, Inc.
    Digital Realty Trust, Inc.      +1 (415) 738-6500
    +1 (415) 738-6500

    Chris Crosby
    Sales & Technical Services
    Digital Realty Trust, Inc.
    +1 (214) 231-1350

SOURCE Digital Realty Trust, Inc.