The JIC8000T12K4S1R from JQL Electronics is a RF & Microwave Isolator with Frequency 8 to 12.4 GHz, Average Power Forward 10 W, Average Power Reverse 2 W, Peak Power Forward 0.25 kW, Insertion Loss 0.4 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC8000T12K4S1R can be seen below.