The DH9-3000-6000-1290 from COM-MW is a RF & Microwave Circulator with Frequency 3 to 6 GHz, Average Power Forward 10 W, Insertion Loss 0.6 dB, Isolation 18 dB, Operating Temperature -20 to 60 Degree C. Tags: Module With Connector, Coaxial Circulator. More details for DH9-3000-6000-1290 can be seen below.