The QSDC-200-2000-50-30-S from Qualwave is a Directional Coupler with Frequency 200 to 2000 MHz, Coupling 30±1.5 dB, Directivity 15 dB, Average Power 50 W, Insertion Loss 0.8 dB. Tags: Module with Connectors. More details for QSDC-200-2000-50-30-S can be seen below.