The MPAT-03100350 from Narda-MITEQ is a RF Variable Attenuator with Frequency 3.1 to 3.5 GHz, Attenuation Range 0 to 15 dB, Insertion Loss 2.2 dB, Supply Voltage 0 to 5 V. Tags: Module with Connectors, Voltage Controlled. More details for MPAT-03100350 can be seen below.