This USB (Universal Serial Bus) 2.0 sync data cable can connect your iPhone or iPod directly or through a dock to your computer's USB (Universal Serial Bus) port for efficient syncing & charging or to the Apple USB (Universal Serial Bus) power adapter (not included) for convenient charging from a wall outlet... Approx. 5m long. No external power supply required. Easily import & download all your music. Update your devices at high speed with the latest music & data. Easily charge your iPhone & iPod by simple connecting to USB (Universal Serial Bus) port of your PC or MAC. The iPod & iPhone USB (Universal Serial Bus) Cable is compatible for all iPod & iPhone models except iPod Shuffle.. Compatible with.. iPhone 4G, 3G (S), 2G.iPad & iPad 2.iPod Nano series.iPod Classic series.iPod Touch series