Apple USB Power Adapter

Apple USB Power Adapters are marketed by Apple, each featuring a USB-A port that is rated for different age levels, depending on the power requirements of the mobile device.

Supported devices
Using a higher-rated charger than the power requirements of the device is fine, but vice-versa is not recommended.
 * Apple 5W USB Power Adapter — iPad mini (1st to 4th gen), all iPhones, all USB-compatible iPods, all Apple Watch series
 * Apple 10W USB Power Adapter — The above and iPad (1st to 3rd gen) (discontinued)
 * Apple 12W USB Power Adapter — The above and iPad (1st to 8th gen), iPad Air (1st to 3rd gen), iPad Pro (1st and 2nd gen)

Supported cables

 * Apple 30-pin to USB Cable
 * Apple Watch Magnetic Charging Cable
 * Lightning to USB Cable

Supported accessories
The larger adapters (10W and above) have a removable "duckhead" that can be switched for use with different types of power connectors.
 * Apple World Travel Adapter Kit
 * Power Adapter Extension Cable

Counterfeit adapters
Apple USB Power Adapters are known to be frequently counterfeited. Apple offered a special program in which customers could trade in a counterfeit adapter for a genuine Apple version for the special price of 10 from August 6 to October 18, 2013 at an Apple retail store or Apple Authorized Service Provider.