The DB20-060400KF from Corech Microwave is a Dual Directional Coupler with Coupling 20 dB (Nominal), Coupling Variation ±1 dB (Balance), Frequency 6 to 40 GHz, Peak Power 0.1 kW, Average Power 20 W (CW). Tags: Module with Connectors, 20 W, 20 dB Dual-Directional Coupler from 6 to 40 GHz. More details for DB20-060400KF can be seen below.