The RFC216-500-1050M from RF-Lambda is a Space Qualified Circulator with Frequency 1 to 1.1 GHz, Bandwidth 100 MHz, Average Power 500 W, Average Power Forward 500 W(Power Handling), Peak Power 4000 W. Tags: Module with Connector, Coaxial Circulator. More details for RFC216-500-1050M can be seen below.