The D3I9521S from DiTom Microwave is a RF & Microwave Isolator with Frequency 950 MHz to 2.15 GHz, Average Power Forward 75 W, Average Power Reverse 10 W, Peak Power 0.1 kW, Insertion Loss 1 dB. Tags: Module with Connectors, Coaxial Isolator. More details for D3I9521S can be seen below.