The RC-1SP4T-40 from Mini Circuits is a RF Switch with Frequency DC to 40 GHz, Insertion Loss 0.1 to 1.1 dB, Isolation 50 to 80 dB, Power 36.99 to 43.01 dBm, Power 5 to 20 W. Tags: Module with Connectors, Electro-Mechanical. More details for RC-1SP4T-40 can be seen below.