The D30N060400 from Fujian MIcable is a Directional Coupler with Frequency 6 to 40 GHz, Coupling 30 dB, Coupling Variation ±0.7 dB, Amplitude Flatness ±0.9 dB, Directivity 10 to 14 dB. Tags: Module with Connectors. More details for D30N060400 can be seen below.