The CX5C1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 500 MHz to 1 GHz, Average Power 2 kW, Average Power Forward 2 kW, Insertion Loss 0.4 dB, Isolation 17 dB. Tags: Module with Connectors, Coaxial Isolator. More details for CX5C1 can be seen below.