The Apple x can be charged with 18W, 29W, 30W, 61W, and 87W, but the 67w fast charge is not included. Apple's official chargers that support fast charging for the iPhoneX are Apple 18W, 29W, 30W, 61W and 87W, which are five USB-C ports.
Everyone will be curious to see here, Apple mobile phone only supports the maximum 18W charging power, then those charging head after 29W to charge iPhoneX will not burn the phone? You don't have to worry, the USB PD protocol is that the charging head and the mobile phone (charged device) can shake hands, that is, when you connect an Apple original 87W (Apple Macbook Pro's original USB-C charger) to the iPhoneX for charging, the charging head will first communicate with the phone.
The iPhoneX will then tell it that I am only a phone, and the maximum current is only 18W, so even if you use an 87W charger, it will never charge the iPhoneX more than 18W.