A USB-C wall power adapter with 20W max output for optimal power delivery when used with the Peak Design Wireless Charging Stand. The Wireless Charging Stand comes with a 2m USB-C to USB-C power cable that can be used with many different types of USB-C power sources, including 3rd party wall adapters. But if you're in need of a wall adapter, get this one and you can be confident that your charger is performing optimally.