The E3XA1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 3.5 to 15 GHz, Average Power 10 W, Average Power Forward 10 W, Insertion Loss 1.5 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for E3XA1 can be seen below.