The PE8317 from Pasternack Enterprises Inc is a RF & Microwave Isolator with Frequency 2 to 10 GHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 2 dB, Isolation 13 to 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for PE8317 can be seen below.