The IS-101 from MCLI is a RF & Microwave Isolator with Frequency 26 to 40 GHz, Average Power Forward 25 W, Insertion Loss 0.7 dB, Isolation 19 dB, Operating Temperature -54 to 85 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for IS-101 can be seen below.