The MCD034042N10M from Meuro Microwave is a Directional Coupler with Frequency 3.4 to 4.2 GHz, Coupling 10±1 dB, Frequency Sensitivity 0.7 dB, Directivity 20 dB, Average Power 50 W. Tags: Module with Connectors. More details for MCD034042N10M can be seen below.