The 890-211217-301 from M2 Global Technology is a RF & Microwave Circulator with Frequency 2.11 to 2.17 GHz, Average Power Forward 100 W, Insertion Loss 0.28 dB, Operating Temperature -20 to 70 Degree C. Tags: Drop-in Circulator. More details for 890-211217-301 can be seen below.