Amazon.com: iPhone 4 Charger Cables (3 Pack 3.3 Ft) 30 Pin to USB Fast Charge & Sync Charging Cable Certified for Old Apple iPhone 4s / 4, 3G / 3GS, Old iPad
Apple 30-pin to USB Cable - Apple
Amazon.com: iPhone 4s Cable, Spater 30-Pin USB Sync and Charging Data Cable for iPhone 4/4S/3G/3GS, iPad 1/2/3, and iPod (5'/1.5 Meter) - Pack of 2 : Electronics