The S3TR-260400E3B from Corech Microwave is a RF Switch with Frequency 26 to 40 GHz, Insertion Loss 3 to 3.5 dB, Isolation 45 to 55 dB, Power 23.01 dBm, Power 0.2 W. Tags: Module with Connectors, Solid State. More details for S3TR-260400E3B can be seen below.