The DC10-265500DF from Corech Microwave is a Directional Coupler with Frequency 26.5 to 50 GHz, Coupling 10 dB, Coupling Variation ±1 dB (Balance), Directivity 10 to 12 dB, Average Power 30 W (CW). Tags: Module with Connectors. More details for DC10-265500DF can be seen below.