The T8YQ1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 8.4 to 10.1 GHz, Average Power 1 W, Average Power Forward 1 W, Peak Power 10 W, Insertion Loss 0.5 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T8YQ1 can be seen below.