The D3I3090 from DiTom Microwave is a RF & Microwave Isolator with Frequency 3 to 9 GHz, Average Power Forward 20 W, Average Power Reverse 2 W, Peak Power 0.02 kW, Insertion Loss 1 dB. Tags: Module with Connectors, Coaxial Isolator. More details for D3I3090 can be seen below.