The CMA550750AH from 3Rwave is a RF & Microwave Circulator with Frequency 5.5 to 7.5 GHz, Average Power Forward 40 W, Insertion Loss 0.35 to 0.4 dB, Isolation 20 to 22 dB, Return Loss 20 to 22 dB. Tags: Drop-in Circulator. More details for CMA550750AH can be seen below.