Abstract: A method of multi-target switch transmission through an externally connected Bluetooth selection device aims to switch at least one input module having a wired connection mode to connect with a first information device and a wireless connection mode to connect with one of at least two second information devices. The method of switch transmission includes the steps of: establishing device connection, setting multi-target devices, determining wired connection mode or wireless connection mode, and determining the second information devices to be connected under the wireless connection mode. Through the externally connected Bluetooth selection device the input module can be switched and usable on the first information device and second information devices at the same time, and also establish connection with the corresponding information device according to requirements.

Abstract: A power supply system providing backup power comprises at least one power supply, at least one power storage unit and a power integration panel. The power supply converts an input power into a conversion power and sends at the same time a power good signal to a motherboard. The power storage unit receives the conversion power in normal conditions and saves electric energy to generate a backup power. The power integration panel includes a power control unit connected to the power supply to determine whether the conversion power is output through the power good signal, a backup control unit connected to the power storage unit to compare the conversion power and backup power to determine whether the backup power is output, and a power regulation unit connected to the power control unit and backup control unit to regulate the conversion power or backup power to be an output power.