The QMSD3KH from Qualwave is a RF Switch with Frequency DC to 43.5 GHz, Insertion Loss 0.40 to 1 dB, Isolation 60 to 80 dB, Supply Voltage 12 to 28 V, Supply Current 180 to 400 mA. Tags: Module with Connectors, Electro-Mechanical. More details for QMSD3KH can be seen below.