The D3I3570 from DiTom Microwave is a RF & Microwave Isolator with Frequency 3.5 to 7 GHz, Average Power 20 W, Average Power Forward 20 W, Average Power Reverse 2 W, Peak Power Forward 0.04 kW. Tags: Module with Connector, Coaxial Isolator. More details for D3I3570 can be seen below.