The DC10-034042NF from Corech Microwave is a Directional Coupler with Frequency 3.4 to 4.2 GHz, Coupling 10 dB, Coupling Variation ±1 dB (Balance), Directivity 20 dB, Average Power 50 W (CW). Tags: Module with Connectors. More details for DC10-034042NF can be seen below.