The JI2C10K0T12K0S1 from JQL Electronics is a RF & Microwave Isolator with Frequency 10 to 12 GHz, Average Power Forward 5 W, Average Power Reverse 5 W, Insertion Loss 0.8 dB, Isolation 40 dB. Tags: Module with Connector, Coaxial Isolator. More details for JI2C10K0T12K0S1 can be seen below.