The 2021 M1 iPad Pro comes with a 20W USB-C charger out of the box. It will take you around three hours to charge the device. The iPad Pro can actually charge at speeds of up to 27W, faster than the 20W charger which Apple bundles with it. For convenience, we would advise you to buy a 30W Apple-certified charger to juice up the iPad from 0%-100% in around two hours. There are actually plenty of them available on Amazon for a relatively low price.