The IS-75/NF from MCLI is a RF & Microwave Isolator with Frequency 1.3 GHz, Average Power Forward 50 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature 0 to 70 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for IS-75/NF can be seen below.