The RI3538XS-1.1-1.35 from ZTS Technologies is a RF & Microwave Isolator with Frequency 1.1 to 1.35 GHz, Average Power Forward 100 W, Average Power Reverse 20 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for RI3538XS-1.1-1.35 can be seen below.