The QSDC-20-1000-50 from Qualwave is a Directional Coupler with Frequency 20 to 1000 MHz, Coupling 10.5±1 dB (N, SMA), 20±1.5dB (SMA), Directivity 18 dB, Average Power 50 W, Insertion Loss 0.65 to 0.84 dB. Tags: Module with Connectors. More details for QSDC-20-1000-50 can be seen below.