The D20N020500 from Fujian MIcable is a Directional Coupler with Frequency 2 to 50 GHz, Coupling 20 dB, Coupling Variation ±1 dB, Amplitude Flatness ±1.1 dB, Directivity 8 to 14 dB. Tags: Module with Connectors. More details for D20N020500 can be seen below.