This product is a High Performance Car Charger with 5V/2.0A output. Use your car to charge any devices (digital cameras PDAs, mobile phones, USB accessories and more) that can rely on USB for power! This adapter plugs into your car cigarette lighter jack to become a powered USB port. It is helpful in long time journey and convenient for business. This USB port car charger compatible performance is very good. Almost can charging for all the electronic equipment which can be charging with USB cable.