The CID01010321G3 from Cernex Inc is a RF & Microwave Isolator with Frequency 1.93 to 1.99 GHz, Average Power Forward 50 W, Insertion Loss 0.3 dB, Isolation 21 dB, Return Loss -80 dBc. Tags: Drop-In, Drop-In Isolator. More details for CID01010321G3 can be seen below.