The DC10-270310KF from Corech Microwave is a Directional Coupler with Frequency 27 to 31 GHz, Coupling 10 dB, Coupling Variation ±1 dB (Balance), Directivity 12 dB, Average Power 30 W (CW). Tags: Module with Connectors. More details for DC10-270310KF can be seen below.