The UIYBCC4222A4P from UIY Inc. is a RF & Microwave Circulator with Frequency 4 to 8 GHz, Bandwidth 4000 MHz, Average Power Forward 100 W, Average Power Reverse 100 W, Insertion Loss 1 dB. Tags: Module with Connectors, Coaxial Circulator. More details for UIYBCC4222A4P can be seen below.