The T3ZH16 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 3.67 to 3.94 GHz, Average Power 2 W, Average Power Forward 2 W, Insertion Loss 0.5 dB, Isolation 28 dB. Tags: Drop-In, Drop-In Isolator. More details for T3ZH16 can be seen below.