Hands on with the iPhone Micro USB plug and third-party chargers | Ars Technica
iPhone 4 4S USB Charger Cable 3ft 1M - 3-Pack
TECHGEAR Micro USB Cable 1 m iPhone 4S 4 USB Data Charger Cable Connector For iPhone 4 4 4S iPad 1 2 Quick Charge USB Sync Data Cable Adapter Phone Charge Cord