The RSMH from Renaissance Electronics Corporation is a RF Switch with Frequency DC to 6 GHz, Insertion Loss 0.2 to 0.3 dB, Switching Speed 20 ms maximum, Operating Temperature -55 to 85 Degree C, Storage Temperature -65 to 125 Degree C. Tags: Module with Connectors, Electro-Mechanical. More details for RSMH can be seen below.