The IMB211220CK from 3Rwave is a RF & Microwave Isolator with Frequency 2.11 to 2.2 GHz, Average Power Forward 80 W, Average Power Reverse 8 W, Insertion Loss 0.25 to 0.35 dB, Isolation 20 to 25 dB. Tags: Surface Mount Isolator. More details for IMB211220CK can be seen below.