The CMA500600AH from 3Rwave is a RF & Microwave Circulator with Frequency 5 to 6 GHz, Average Power Forward 50 W, Insertion Loss 0.4 to 0.5 dB, Isolation 18 to 20 dB, Return Loss 18 to 20 dB. Tags: Drop-in Circulator. More details for CMA500600AH can be seen below.