The QDDC-4000-5000-K2-10-NS from Qualwave is a Dual Directional Coupler with Coupling 10 dB, Coupling Variation ±0.5 dB, Frequency 4000 to 5000 MHz, Peak Power 2000 W, Average Power 200 W. Tags: Module with Connectors. More details for QDDC-4000-5000-K2-10-NS can be seen below.