The COI12130323G from Cernex Inc is a RF & Microwave Isolator with Frequency 12.75 to 13.25 GHz, Average Power Forward 10 W, Insertion Loss 0.3 dB, Isolation 23 dB, Operating Temperature -40 to 85 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for COI12130323G can be seen below.