The QPS4-100-20000-A from Qualwave is a RF Switch with Frequency 0.1 to 20 GHz, Insertion Loss 3.2 to 4.5 dB, Isolation 36 to 45 dB, P1dB 24 dBm, P1dB 0.25 W. Tags: Module with Connectors, Solid State. More details for QPS4-100-20000-A can be seen below.