The QSDC-2000-6500-K3-20-NS from Qualwave is a Directional Coupler with Frequency 2000 to 6500 MHz, Coupling 20±1.2 dB, Directivity 12 dB, Average Power 300 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for QSDC-2000-6500-K3-20-NS can be seen below.