The D3I0507 from DiTom Microwave is a RF & Microwave Isolator with Frequency 500 to 700 MHz, Average Power Forward 300 W, Average Power Reverse 2 W, Peak Power 0.75 kW, Insertion Loss 0.6 dB. Tags: Module with Connectors, Coaxial Isolator. More details for D3I0507 can be seen below.