The SW(B)402B from BOWEI Integrated Circuits is a RF Switch with Frequency 1 to 4 GHz, Insertion Loss 1.8 to 2.3 dB, Isolation 65 to 70 dB, Power 30 dBm, Power 1 W. Tags: Module with Connectors, Solid State. More details for SW(B)402B can be seen below.