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)