The C8XM4 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 8 to 18 GHz, Average Power 20 W, Average Power Forward 20 W, Insertion Loss 0.6 dB, Isolation 16 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C8XM4 can be seen below.