The QMSD3K from Qualwave is a RF Switch with Frequency DC to 40 GHz, Insertion Loss 0.2 to 1 dB, Isolation 50 to 70 dB, Supply Voltage 12 to 28 V, Supply Current 170 to 400 mA. Tags: Module with Connectors, Solid State. More details for QMSD3K can be seen below.