The T-4S63U-70 from Teledyne Microwave Solutions is a RF & Microwave Isolator with Frequency 4.5 to 9 GHz, Average Power Forward 50 W, Average Power Reverse 2 W, Insertion Loss 0.5 dB, Isolation 17 dB. Tags: Module with Connector, Coaxial Isolator. More details for T-4S63U-70 can be seen below.