The UIYBCC14272A4P from UIY Inc. is a RF & Microwave Circulator with Frequency 1 to 2 GHz, Bandwidth 1000 MHz, Average Power Forward 300 W, Average Power Reverse 300 W, Insertion Loss 1.4 dB. Tags: Module with Connectors, Coaxial Circulator. More details for UIYBCC14272A4P can be seen below.