This compatible USB 2.0 sync data cable can connect your iPhone or iPod directly or through a dock to your computer's USB port for efficient syncing and charging. A separate compatible USB power supply or the Apple USB power adapter (not included) can also be used for convenient charging from a wall outlet. Specifications : High Speed USB 2.0 Cable Interface Data Transfers of up to 480 Mbps with battery charge support. Works with iPad, iPad 2, iPhone 4 / 3GS / 3G and 1st Gen iPhone, iPod Touch and some iPods* Cable Length: 1 Metre Manufacturer: Third Party (Non Official) Note: This data charge cable may work with other iPod products that feature a Dock connector and can use the USB interface for charging duties, some older iPod models with a dock connector may synchronize data through and USB port but require a Firewire port for battery charging.