The QSDC-2000-40000-20 from Qualwave is a Directional Coupler with Frequency 2000 to 40000 MHz, Coupling 6±0.8 dB, Directivity 10 dB, Average Power 20 W, Insertion Loss 3.6 dB. Tags: Module with Connectors. More details for QSDC-2000-40000-20 can be seen below.