The QDDC-2000-8000-K15-40-NS from Qualwave is a Dual Directional Coupler with Coupling 40 dB, Coupling Variation ±1 dB, Frequency 2000 to 8000 MHz, Average Power 150 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QDDC-2000-8000-K15-40-NS can be seen below.