The PE71S9004 from Pasternack Enterprises Inc is a Waveguide Switch with Frequency 75 to 110 GHz, Insertion Loss 5.5 to 7 dB, Isolation 20 dB, Supply Voltage -5 to 5 V, Current 20 mA. Tags: Module with Connectors. More details for PE71S9004 can be seen below.