The HD32965 from HD Communications Corp is a RF & Microwave Circulator with Frequency 0.2 to 0.8 GHz, Average Power 400 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature -30 to 75 Degree C. Tags: TAB, Drop-in Circulator. More details for HD32965 can be seen below.