The DH9-26.5-40G-1561 from COM-MW is a RF & Microwave Circulator with Frequency 26.5 to 40 GHz, Average Power Forward 10 W, Insertion Loss 1.2 dB, Isolation 11 dB, Operating Temperature -30 to 70 Degree C. Tags: Module With Connector, Coaxial Circulator. More details for DH9-26.5-40G-1561 can be seen below.