The D13N020400 from Fujian MIcable is a Directional Coupler with Frequency 2 to 40 GHz, Coupling 13 dB, Coupling Variation ±0.7 dB, Amplitude Flatness ±0.8 dB, Directivity 10 dB. Tags: Module with Connectors. More details for D13N020400 can be seen below.