The UIYBCI4040A from UIY Inc. is a RF & Microwave Isolator with Frequency 1.7 to 3.5 GHz, Average Power Forward 100 to 200 W, Average Power Reverse 30 W, Insertion Loss 0.7 dB, Isolation 17 dB. Tags: Module with Connector, Coaxial Isolator. More details for UIYBCI4040A can be seen below.