The CMA540590AH from 3Rwave is a RF & Microwave Circulator with Frequency 5.4 to 5.9 GHz, Average Power Forward 30 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 CMA540590AH can be seen below.