The GL-T-107127-20-5 from A-Info is a RF & Microwave Isolator with Frequency 10.7 to 12.7 GHz, Average Power Forward 5 W, Average Power Reverse 5 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for GL-T-107127-20-5 can be seen below.