The RI1319CS-107127 from ZTS Technologies is a RF & Microwave Isolator with Frequency 10.7 to 12.7 GHz, Average Power Forward 30 W, Average Power Reverse 10 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for RI1319CS-107127 can be seen below.