The AKC-010400-10 from Atlantic Microwave is a Directional Coupler with Frequency 1 to 40 GHz, Coupling 10 dB, Coupling Variation ± 1 dB, Amplitude Flatness 1 dB, Directivity 10 dB. Tags: Module with Connectors. More details for AKC-010400-10 can be seen below.