The IS-34-SMI from MCLI is a RF & Microwave Isolator with Frequency 37 to 38 GHz, Average Power Forward 50 W, Peak Power Forward 0.1 kW, Insertion Loss 0.6 dB, Isolation 19 dB. Tags: Module with Connector, Coaxial Isolator. More details for IS-34-SMI can be seen below.