The C1XV1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.2 to 1.4 GHz, Average Power 1.6 kW, Average Power Forward 1.6 kW, Peak Power 80 W, Insertion Loss 0.3 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C1XV1 can be seen below.