The QSDC-800-12750-K1-10-S from Qualwave is a Directional Coupler with Frequency 800 to 12750 MHz, Coupling 10±1 dB, Directivity 15 dB, Average Power 100 W, Insertion Loss 1.3 dB. Tags: Module with Connectors. More details for QSDC-800-12750-K1-10-S can be seen below.