The RFC216W500G155 from RF-Lambda is a Space Qualified Circulator with Frequency 1.45 to 1.65 GHz, Bandwidth 200 MHz, Average Power Forward 500 W, Peak Power 1.2 kW, Insertion Loss 0.350 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFC216W500G155 can be seen below.