Gomadic Intelligent Compact AC Home Wall Charger suitable for the ViewSonic ViewPad 7 - High output power with a convenient, foldable plug design - Uses TipExchange Technology Advanced state-of-the-art internal circuitry protects the ViewSonic ViewPad 7 from power surges, overcharging, and short-circuiting, to significantly extend the internal battery lifecycle. Power Sleep"" feature reduces vampire power draw 99%. Charger will consume less than 0.1W of power when in ""dormant state"" (e.g. not connected to the ViewSonic ViewPad 7). Gomadic Powerful High Wattage wall charger for home or travel use. Customized circuit design is based on the latest in power regulation and is tailored to the precise output voltage and resistor ID requirements of the ViewSonic ViewPad 7 (accurate to 0.1v!) Uniquely engineered in a small, lightweight, and highly portable design, the Gomadic ViewSonic ViewPad 7 Wall Charger travels easily, saving both space and time. Specification: Input Voltage (100 - 240vAC), Cable length (50 inches), Transformer Dimensions (2.0 X 1.75 inches), Foldable Adapter (Yes), Circuit Design (ViewSonic ViewPad 7 Specific)