The CT-4042-OT from UTE Microwave is a RF & Microwave Isolator with Frequency 4.3 to 5.1 GHz, Average Power Forward 1 W, Insertion Loss 0.30 dB max, Isolation 22 dB min. Tags: Module with Connector, Coaxial Isolator. More details for CT-4042-OT can be seen below.