The PTCM4027 from Communications & Power Industries is a RF Amplifier with Frequency 26.5 to 40 GHz, Output Power 55.44 to 56.02 dBm, Output Power 350 to 400 W, Supply Voltage 110 to 240 V, Operating Temperature 0 to 40 Degree C. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for PTCM4027 can be seen below.