The D10N010400 from Fujian MIcable is a Directional Coupler with Frequency 1 to 40 GHz, Coupling 10 dB, Coupling Variation ±0.6 dB, Amplitude Flatness ±0.9 dB, Directivity 10 to 14 dB. Tags: Module with Connectors. More details for D10N010400 can be seen below.