The RFC27W500G30 from RF-Lambda is a Space Qualified Circulator with Frequency 2.7 to 3.3 GHz, Bandwidth 600 MHz, Average Power Forward 500 W, Average Power Reverse 500 W, Peak Power 1200 W. Tags: Module with Connector, Coaxial Circulator. More details for RFC27W500G30 can be seen below.