The QSDC-500-8000-K6 from Qualwave is a Directional Coupler with Frequency 500 to 8000 MHz, Coupling 30±0.8 to 40±0.9 dB, Directivity 14 dB, Average Power 600 W, Insertion Loss 0.7 dB. Tags: Module with Connectors. More details for QSDC-500-8000-K6 can be seen below.