The IS-124 from MCLI is a RF & Microwave Isolator with Frequency 30 to 35 GHz, Average Power Forward 1 W, Insertion Loss 1.1 dB, Isolation 20 dB, Operating Temperature -10 to 60 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for IS-124 can be seen below.