Griffin GC17080 USB to Dock Connector Cable for iPod & iPhone - Coiled USB connects with your Mac or PC as well as a growing number of power products for iPod that use USB to charge The Dock Connector links your 4th generation or later iPod to your PC or Mac Carry an extra in your bag or backpack to charge and sync on the go. USB connects with your Mac or PC as well as a growing number of power products for iPod that use USB to charge The Dock Connector links your 4th generation or later iPod to your PC or Mac Carry an extra in your bag or backpack to charge and sync on the go