The RFLI101M30M50 from RF-Lambda is a RF & Microwave Isolator with Frequency 300 to 500 MHz, Average Power Forward 30 W, Average Power Reverse 5 W, Insertion Loss 0.9 dB, Isolation 17 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFLI101M30M50 can be seen below.