The C11L2 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 11.6 to 13.7 GHz, Average Power 50 W, Average Power Forward 50 W, Peak Power 50 W, Insertion Loss 0.4 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C11L2 can be seen below.