The MDC20-100400 from Microot Microwave is a Directional Coupler with Frequency 10 to 40 GHz, Coupling 20 ± 0.6 dB, Coupling Variation ± 0.6 dB, Directivity 12 dB, Power 20 W. Tags: Module with Connectors. More details for MDC20-100400 can be seen below.