The ZCI20S-4.5-5.5-60A from ZTS Technologies is a RF & Microwave Isolator with Frequency 4.5 to 5.5 GHz, Average Power Forward 60 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature 10 to 60 Degree C. Tags: Coaxial Isolator. More details for ZCI20S-4.5-5.5-60A can be seen below.