The IS-2-1/NMO from MCLI is a RF & Microwave Isolator with Frequency 2 to 3 GHz, Average Power Forward 1 W, Insertion Loss 0.6 dB, Isolation 17 dB, Operating Temperature 10 to 40 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for IS-2-1/NMO can be seen below.