The QSDC-2000-2500-K5-40-NS from Qualwave is a Directional Coupler with Frequency 2000 to 2500 MHz, Coupling 40±2 dB, Directivity 15 dB, Average Power 500 W, Insertion Loss 0.4 dB. Tags: Module with Connectors. More details for QSDC-2000-2500-K5-40-NS can be seen below.