The D3012HB004080 from Fujian MIcable is a Dual Directional Coupler with Coupling 30 dB, Coupling Variation ±0.9, Frequency 0.4 to 8 GHz, Peak Power 3000 W, Average Power 600 W. Tags: Module with Connectors. More details for D3012HB004080 can be seen below.