The RFLI-403-1 from RF-Lambda is a RF & Microwave Isolator with Frequency 3.7 to 6.5 GHz, Average Power Forward 10 W, Average Power Reverse 2 W, Insertion Loss 0.25 dB, Isolation 25 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFLI-403-1 can be seen below.