The XSEM323D from Narda-MITEQ is a RF Switch with Frequency DC to 18 GHz, Insertion Loss 0.2 to 0.5 dB, Isolation 60 to 80 dB, Supply Voltage 28 V, Actuator Voltage 28 V. Tags: Module with Connectors, Electro-Mechanical. More details for XSEM323D can be seen below.