The QSDC-2000-4200-1K-40-7S from Qualwave is a Directional Coupler with Frequency 2000 to 4200 MHz, Coupling 40±0.8 dB, Directivity 15 dB, Average Power 1000 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QSDC-2000-4200-1K-40-7S can be seen below.