to Schedule 13D Joint Filing AgreementJoint Filing Agreement • April 16th, 2012 • Seligman Spectrum Focus (Master) Fund • Semiconductors & related devices
The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13D dated April 5, 2012 in connection with their beneficial ownership of PLX Technology, Inc., and any amendments thereto. Each of Ameriprise Financial, Inc. and Columbia Management Investment Advisers, LLC authorizes Seligman Spectrum Focus (Master) Fund to execute the Schedule 13D to which this Exhibit is attached and make any necessary amendments thereto.
