The RC-4SPDT-A18 from Mini Circuits is a RF Switch with Frequency DC to 18 GHz, Insertion Loss 0.1 to 0.5 dB, Isolation 60 to 100 dB, Power 46.02 dBm, Power 40 W. Tags: Module with Connectors, Electro-Mechanical. More details for RC-4SPDT-A18 can be seen below.