The C1XM2 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.5 to 1.56 GHz, Average Power 20 W, Average Power Forward 20 W, Insertion Loss 0.3 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C1XM2 can be seen below.