Apple x supports up to 18w fast charge, as long as you buy a fast charge head that supports the Apple certification protocol of 18w or more, you can realize the fast charge of Apple x. Common market 20w, 45w, 30w, 65w, etc. Apple x is the first batch of Apple to support fast charge mobile phones, until the iphone12 seems to reach 20w fast charge, the latest 13 series is also 20w.