The D3I4012 from DiTom Microwave is a RF & Microwave Isolator with Frequency 4 to 12 GHz, Average Power 20 W, Average Power Forward 20 W, Average Power Reverse 2 W, Peak Power Forward 0.03 kW. Tags: Module with Connector, Coaxial Isolator. More details for D3I4012 can be seen below.