The MDC6227-20 from Preferred Power Products (P3) is a Dual Directional Coupler with Coupling 20 dB, Coupling Variation ±1.0 dB, Frequency 7 to 12.4 GHz, Peak Power 3 kW, Average Power 50 W. Tags: Module with Connectors. More details for MDC6227-20 can be seen below.