20w usb-c power adapter
I have two 20w usb-c power adapters and I got one with the iPad, the other I’m not sure if it’s original and both are mixed up now and I can’t find which one is the original.
iPad Pro, iPadOS 15
most of the time fake adapters doesn't works as the iPhone fail to recognise accessory but you can identify the fake one by using the information provided on the link-
Identify counterfeit or uncertified Lightning connector accessories - Apple Support