The ZK-MSP4TA-18 from Mini Circuits is a RF Switch with Frequency DC to 18 GHz, Insertion Loss 0.15 to 0.8 dB, Isolation 60 to 100 dB, Power 30 to 43.01 dBm, Power 1 to 20 W. Tags: Module with Connectors, Electro-Mechanical. More details for ZK-MSP4TA-18 can be seen below.