The RC-1SP4T-A18 from Mini Circuits is a RF Switch with Frequency DC to 18 GHz, Insertion Loss 0.1 to 0.8 dB, Isolation 60 to 105 dB, Power 43.01 dBm, Power 20 W. Tags: Module with Connectors, Electro-Mechanical. More details for RC-1SP4T-A18 can be seen below.