The CMB211217DM from 3Rwave is a RF & Microwave Circulator with Frequency 2110 to 2170 MHz, Average Power Forward 100 W, Insertion Loss 0.3 to 0.4 dB, Isolation 22 to 25 dB, Return Loss 22 to 25 dB. Tags: Surface Mount Circulator. More details for CMB211217DM can be seen below.