This wall charger can be plugged directly into a wall outlet or power strip to provide two full-power USB charging/power ports. Each port is rated to produce 2.4 amps / 12 watts of power, allowing you to charge power hungry devices, such as the Apple iPad®. 2x USB Ports: The two USB charging ports can independently deliver the full rated power, allowing you to simultaneously charge two devices at maximum speed. Power Output: Each USB port is independently capable of delivering 2.4A / 12 watts of charging power, for a total of 4.8A / 24 watts, enough to charge multiple power-hungry devices, such as the Apple iPad®. Portability: Measuring only 2.9" x 2.2" x 1.2" and weighing only 4.4 ounces, you can easily pack this charger in a laptop bag or purse, for use on the road, in the office, or at home.