The WVQ-4700M-600BW01 from Wevercomm is a RF & Microwave Circulator with Frequency 4.4 to 5 GHz, Average Power Forward 50 W, Insertion Loss 0.5 dB, Isolation 23 dB, Operating Temperature -40 to 55 Degree C. Tags: Module with Connector, Coaxial Circulator. More details for WVQ-4700M-600BW01 can be seen below.