The WVI-4G-4GBW01 from Wevercomm is a RF & Microwave Isolator with Frequency 2 to 6 GHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 1.2 dB, Isolation 15 dB. Tags: Module with Connectors, Coaxial Isolator. More details for WVI-4G-4GBW01 can be seen below.