The QVS USB Dock Sync and Charge 30-Pin Extension Cable makes it easier to recharge the battery of your device. It works with a variety of devices, such is iPads, iPods and more. It extends the reach of any USB cable, making it more convenient to reach a computer USB port or a wall adapter. This iPad extension cable works with both A/A and A/B USB connectors and has the capacity for the higher voltage that an iPad requires to recharge. It allows for more flexibility and freedom of movement if you are using your device while it charges.