The GL-T-3045-25-50 from A-Info is a RF & Microwave Isolator with Frequency 3 to 4.5 GHz, Bandwidth 200 MHz, Average Power Forward 50 W, Average Power Reverse 10 W, Insertion Loss 0.3 dB. Tags: Module with Connector, Coaxial Isolator. More details for GL-T-3045-25-50 can be seen below.