The apple 18w usb‐c power adapter offers fast, efficient charging at home, in the office, or on the go. While the power adapter is compatible with any usb‐c-enabled device, apple recommends pairing it with the 11-inch ipad pro and 12. 9-inch ipad pro (3rd generation) for optimal charging performance. You can also pair it with iphone 8 or later to take advantage of the fast-charging feature.