The RFLI101M40M50 from RF-Lambda is a RF & Microwave Isolator with Frequency 400 to 500 MHz, Average Power Forward 100 W, Average Power Reverse 10 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFLI101M40M50 can be seen below.