The D10N005500 from Fujian MIcable is a Directional Coupler with Frequency 0.5 to 50 GHz, Coupling 10 dB, Coupling Variation ±1.2 dB, Amplitude Flatness ±1.6 dB, Directivity 8 to 14 dB. Tags: Module with Connectors. More details for D10N005500 can be seen below.