The TX2C2 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 200 to 300 MHz, Average Power 4.5 W, Average Power Forward 4.5 W, Peak Power 6.0 W, Insertion Loss 0.25 dB. Tags: Module with Connectors, Coaxial Isolator. More details for TX2C2 can be seen below.