Ldnio A4405 is 4 USB Ports charger sends DC5V/4.4A(AM) 22W, Ldnio is high efficiency and low energy consumption. Circuit protection to avoid overload. Use your current CABLE Charging / Sync Cable for charging. Compatible with most USB enable devices, including iphone, ipad, mini ipad and Samsung phones. Ideal for travel, home or office, Offers fast, efficient charging.