The 9500-12750-20-5 from A-Info is a RF & Microwave Isolator with Frequency 9.5 to 12.75 GHz, Average Power Forward 5 W, Average Power Reverse 1 W, Peak Power Forward 0.02 kW, Insertion Loss 0.5 dB. Tags: Module with Connector, Coaxial Isolator. More details for 9500-12750-20-5 can be seen below.