The 40W Dynamic Power Adapter with 60W Max is uniquely designed to dynamically deliver up to 60W of output, providing a powerful boost in charging speeds. With Dynamic Power, you get many of the same benefits of higher-wattage chargers in a compact, pocket-size form factor to make charging at home, in the office or on the go faster and more convenient than ever. For fast charging, pair the Dynamic Power Adapter with iPhone 17 models (up to 50 per cent charge in 20 minutes) or iPhone Air (up to 50 per cent charge in 30 minutes). Compatible with USB-Cenabled devices. Charging cable sold separately.