The FMIR1006 from Fairview Microwave is a RF & Microwave Isolator with Frequency 4 to 8 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Insertion Loss 0.6 dB, Isolation 18 dB. Tags: Module with Connectors, Coaxial Isolator. More details for FMIR1006 can be seen below.