The CX3N1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 370 to 550 MHz, Average Power 1.2 kW, Average Power Forward 1.2 kW, Insertion Loss 0.45 dB, Isolation 17 dB. Tags: Module with Connectors, Coaxial Isolator. More details for CX3N1 can be seen below.