The DSI2731 from DiTom Microwave is a RF & Microwave Isolator with Frequency 27 to 31 GHz, Average Power Forward 5 W, Average Power Reverse 2 W, Peak Power 30 W, Insertion Loss 0.6 dB. Tags: Module with Connectors, Coaxial Isolator. More details for DSI2731 can be seen below.