The RFLC407G4G8 from RF-Lambda is a Space Qualified Circulator with Frequency 4 to 8 GHz, Bandwidth 4000 MHz, Average Power Forward 10 W, Average Power Reverse 3 W, Insertion Loss 1.2 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC407G4G8 can be seen below.