The C5BM1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 5.4 to 5.9 GHz, Average Power 20 W, Average Power Forward 20 W, Insertion Loss 0.8 dB, Isolation 18 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C5BM1 can be seen below.