Ldnio A6140C 140W GaN Fast Desktop 6-Ports Charger The LDNIO A6140C 140W GaN Desktop Charger is a high-performance 6-port charging station that utilizes Gallium Nitride (GaN) technology to provide high-speed power in a compact, heat-efficient design . It is distinguished from the Q4010 model by its built-in LED digital display , which shows real-time power output for each port.