The SR40-312 from Custom Microwave Components is a RF Switch with Frequency 100 MHz to 20 GHz, Insertion Loss 0.5 to 3.1 dB, Isolation 45 to 65 dB, Power 30 to 33 dBm, Power 1 to 1.99 W. Tags: Module with Connectors, Solid State. More details for SR40-312 can be seen below.