Fast charge up to four smartphones, tablet computers, eReaders... virtually any USB chargeable mobile device! The use of multiple mobile devices by families and small business, health care, and restaurant operations is a common daily occurrence. Unfortunately, power adapters for devices can get lost and wall outlets can only charge two devices simultaneously. Typical charging hubs don''t offer enough ports and/or enough power per port so you spend time waiting for a full charge or worse, only getting a partial charge. The VisionTek High Power USB Four Port Charging Hub is the uncommonly powerful, centralized charging solution for charging up to four devices as fast as the factory adapter*. It features three 1 amp ports for charging small mobile devices like Apple® iPods® and iPhones®, and one 2.1 amp port for charging iPads®, tablet computers and smartphones that require higher amperage power charging. Ultra-Portable and Intelligent ChargingFeaturing a built-in power adapter, the Four Port Charging Hub eliminates the "wall wart" common with electronic devices. Just plug the power cord into a wall outlet to enjoy multi-device charging. Besides being ultra-portable, the Four Port Charging Hub uses intelligent charging technology to auto detect what charging current an attached device utilizes and then provides safe charging of the device. Charges All Your Legacy to Latest DevicesBecause the Four Port Charging Hub utilizes the common USB connector found on a wide variety of devices, all of your new and old USB devices can be charged at their optimum rate and speed.