Smart usb power supply power boards are designed to provide power to multiple USB devices at once, allowing for efficient and rapid charging. These boards are equipped with multiple USB ports and come with integrated circuitry to protect against short circuits and surges. Smart boards are equipped with intelligent charging technology which can detect the device type and provide the optimum charging speed for each device. Smart boards can also be used with a variety of adapters, allowing you to charge multiple devices with one power source.