The UIYBCI3434B from UIY Inc. is a RF & Microwave Isolator with Frequency 700 to 900 MHz, Average Power Forward 100 to 300 W, Average Power Reverse 30 W, Insertion Loss 0.4 dB, Isolation 18 dB. Tags: Module with Connector, Coaxial Isolator. More details for UIYBCI3434B can be seen below.