The DDC211217-2 from DEEWAVE Electronics is a RF & Microwave Circulator with Frequency 2.11 to 2.17 GHz, Average Power Forward 100 W, Insertion Loss 0.3 dB, Isolation 25 dB, Operating Temperature -40 to 85 Degree C. Tags: Drop-in Circulator. More details for DDC211217-2 can be seen below.