The QMS18S from Qualwave is a RF Switch with Frequency DC to 6 GHz, Insertion Loss 0.25 to 0.35 dB, Isolation 70 to 80 dB, Supply Voltage 12 to 28 V, Supply Current 100 to 300 mA. Tags: Module with Connectors, Multi Configuration. More details for QMS18S can be seen below.