The UIYCDC9648A4P from UIY Inc. is a RF & Microwave Circulator with Frequency 250 MHz to 1 GHz, Bandwidth 187.5 MHz, Average Power Forward 400 W, Average Power Reverse 400 W, Insertion Loss 0.6 dB. Tags: Module with Connectors, Coaxial Circulator. More details for UIYCDC9648A4P can be seen below.