The S4TR-10M400E4B from Corech Microwave is a RF Switch with Frequency 0.1 to 40 GHz, Insertion Loss 4.5 to 5 dB, Isolation 60 to 70 dB, Power 23.01 dBm, Power 0.2 W. Tags: Module with Connectors, Solid State. More details for S4TR-10M400E4B can be seen below.