The DG9-2-4G-1204 from COM-MW is a RF & Microwave Isolator with Frequency 2 to 4 GHz, Average Power Forward 100 W, Average Power Reverse 20 W, Insertion Loss 0.6 dB, Isolation 18 dB. Tags: Coaxial Isolator. More details for DG9-2-4G-1204 can be seen below.