The COIU6010420G-XX from Cernex Inc is a RF & Microwave Isolator with Frequency 600 MHz to 1 GHz, Bandwidth 200 MHz, Average Power Forward 10 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for COIU6010420G-XX can be seen below.