The C2YD9 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 2.5 to 3.5 GHz, Average Power 50 W, Average Power Forward 50 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C2YD9 can be seen below.