The S4TA-50M400E4B from Corech Microwave is a RF Switch with Frequency 0.05 to 40 GHz, Insertion Loss 6.5 to 7 dB, Isolation 45 dB, Power 23.01 dBm, Power 0.2 W. Tags: Module with Connectors, Solid State. More details for S4TA-50M400E4B can be seen below.