The T8XR1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 8 to 8.5 GHz, Average Power 1 W, Average Power Forward 1 W, Insertion Loss 0.6 dB, Isolation 40 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T8XR1 can be seen below.