The QSDC-2000-6000-K3-40-NS from Qualwave is a Directional Coupler with Frequency 2000 to 6000 MHz, Coupling 40±0.5 dB, Directivity 16 dB, Average Power 300 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QSDC-2000-6000-K3-40-NS can be seen below.