Amzer Definitive Data Cable for iPhone 3G - Black Work perfectly with iPhone 3G/ 3G S with Otterbox on it. Sync/ Charge your iPhone 3G/ 3G S without removing Otterbox Case. Data Cable transfers images and data between your device and PC by USB port. This cable can both sync and charge your device witout removing Otterbox case. It easily fits into any bag, purse or briefcase, making it the perfect travel accessory.