The USB Charger will allow you to charge your iPad or iPad2 with the USB port on your computer. Simply plug your device into the USB Charger and plug the USB Charger directly into your computer's USB port. That's all it takes! Simply allow the device to charge for an average of 6-8 hours for a complete charge. Charging will be continued even after your iPad/iPad2 goes into sleep mode from active mode during charging.