POWER OF ATTORNEY

      KNOW ALL PERSONS BY THESE PRESENTS that the person whose signature
appears below does hereby make, constitute and appoint each of A. William Stein,
Joshua A. Mills and S. Ryan Black as a true and lawful attorney-in-fact of the
undersigned with full powers of substitution and revocation, for and in the name, place
and stead of the undersigned (both in the undersigned's individual capacity and as an
officer or member of the board of directors of Digital Realty Trust, Inc., the general
partner of Digital Realty Trust, L.P.) to execute and deliver such forms as may be
required to be filed from time to time with the Securities and Exchange Commission with
respect to any investments of Digital Realty Trust, Inc. or Digital Realty Trust, L.P.
(including any amendments or supplements to any reports from schedules previously
filed by such persons or entities) including any joint filing agreements or joint filer
information statements in connection therewith, with respect to Digital Realty Trust, Inc.,
Digital Realty Trust, L.P.  or any subsidiary of Digital Realty Trust, Inc. or Digital Realty
Trust, L.P.: (i) pursuant to Sections 13(d) and 16(a) of the Securities Exchange Act of
1934, as amended, including without limitation Schedules 13D and 13G, and statements
on Form 3, Form 4 and Form 5 and (ii) in connection with any applications for EDGAR
access codes, including without limitation the Form ID.



/s/ Matthew J. Miszewski
Matthew J. Miszewski
Senior Vice President, Sales


January 24, 2013