The CMC500800AS from 3Rwave is a RF & Microwave Circulator with Frequency 5 to 8 GHz, Average Power Forward 50 W, Insertion Loss 0.4 to 0.45 dB, Isolation 18 to 20 dB, Return Loss 18 to 20 dB. Tags: Coaxial Circulator. More details for CMC500800AS can be seen below.