The UIYBCC6434A4P from UIY Inc. is a RF & Microwave Circulator with Frequency 2 to 4 GHz, Bandwidth 2000 MHz, Average Power Forward 100 W, Average Power Reverse 100 W, Insertion Loss 1.2 dB. Tags: Module with Connectors, Coaxial Circulator. More details for UIYBCC6434A4P can be seen below.