The D3I2040 from DiTom Microwave is a RF & Microwave Isolator with Frequency 2 to 4 GHz, Average Power 30 W, Average Power Forward 30 W, Average Power Reverse 2 W, Peak Power Forward 0.05 kW. Tags: Module with Connector, Coaxial Isolator. More details for D3I2040 can be seen below.