The EI3400F3600DA from ECHO Microwave is a RF & Microwave Isolator with Frequency 3.4 to 3.6 GHz, Average Power Forward 50 W, Insertion Loss 0.35 dB, Isolation 20 dB, Operating Temperature -20 to 85 Degree C. Tags: Drop-In, Drop-In Isolator. More details for EI3400F3600DA can be seen below.