The GL-T-815-20-30 from A-Info is a RF & Microwave Isolator with Frequency 800 MHz to 1.5 GHz, Bandwidth 200 MHz, Average Power Forward 30 W, Average Power Reverse 5 W, Insertion Loss 0.4 dB. Tags: Module with Connector, Coaxial Isolator. More details for GL-T-815-20-30 can be seen below.