Amazon.com: OYEFLY 2pcs 30 Pin USB Sync Charging Cable Cord Replacement for Old A-pple i-Phone 4/4S 3G/3GS, i-Pad 1/2/3,i-Pod Nano/i-Pod Touch (3.2ft (2pcs)) : Electronics
Iphone 4 Micro Usb Converter Adapter | Ipad 2 Charger Cable Converter - Micro Usb - Aliexpress
30-Pin Data & Charge Cable for Old Apple Devices (1m) - The Velvet Squirrel
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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