The QSDC-2000-50000-20 from Qualwave is a Directional Coupler with Frequency 2000 to 50000 MHz, Coupling 10±2 to 20±2 dB, Directivity 10 dB, Average Power 20 W, Insertion Loss 2 dB. Tags: Module with Connectors. More details for QSDC-2000-50000-20 can be seen below.