The QSDC-2000-18000-K2-50-N from Qualwave is a Directional Coupler with Frequency 2 to 18 GHz, Coupling 50±2 dB, Directivity 15 dB, Average Power 200 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for QSDC-2000-18000-K2-50-N can be seen below.