The DC10-100400KF from Corech Microwave is a Directional Coupler with Frequency 10 to 40 GHz, Coupling 10 dB, Coupling Variation ±1 dB (Balance), Directivity 10 dB, Average Power 30 W (CW). Tags: Module with Connectors. More details for DC10-100400KF can be seen below.