The ZTRC-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 43.01 dBm, Power 20 W. Tags: Rack Mount, Electro-Mechanical. More details for ZTRC-4SPDT-A18 can be seen below.