The Dock connector to USB 2.0cable  for iPod offes up to 480Mbps data transfer for quickly loading an entire music library on iPod or iPod Mini.Connect the USB cable up to the iPod or iPod Mini power adapter to charge while syncing.Compatible with iPod with click wheel, iPod mini and iPod with Dock connector.Light weight, slim convenient, help you go anywhwere.Durable, compact and retractable cable.Synchronizing and chrge your iPod at the same time.Extends to 35 inches in length, endure weightof 500g.Note for MIc users:USB 2.0 requries Mac V10.3.4 or later for comptibility.