The C3YW1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 3.1 to 3.4 GHz, Average Power 15 W, Average Power Forward 15 W, Peak Power 675 W, Insertion Loss 0.4 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C3YW1 can be seen below.