The D4005HB010180 from Fujian MIcable is a Dual Directional Coupler with Coupling 40 dB, Coupling Variation ±1.2 dB, Frequency 1 to 18 GHz, Peak Power 3000 W, Average Power 250 W. Tags: Module with Connectors. More details for D4005HB010180 can be seen below.