The DC3G2000B20C40PS-01 from Dyne Tech is a Directional Coupler with Frequency 2 to 4 GHz, Coupling 20 dB, Coupling Variation ±1.2 dB, Directivity 20 dB, Average Power 40 W. Tags: Module with Connectors. More details for DC3G2000B20C40PS-01 can be seen below.