The CMB250270CS from 3Rwave is a RF & Microwave Circulator with Frequency 2.5 to 2.7 GHz, Average Power Forward 120 W, Insertion Loss 0.25 to 0.32 dB, Isolation 21 to 25 dB, Return Loss 21 to 25 dB. Tags: Surface Mount Circulator. More details for CMB250270CS can be seen below.