The QSDC-10750-12750-50 from Qualwave is a Directional Coupler with Frequency 10750 to 12750 MHz, Coupling 20±1 to 30±1 dB, Directivity 15 dB, Average Power 50 W, Insertion Loss 0.5 to 0.6 dB. Tags: Module with Connectors. More details for QSDC-10750-12750-50 can be seen below.