Apple has now begun retail sales of the wheel set and stand for the Mac Pro 2019. Since this computer is not cheap, its accessories are also very expensive. In fact, the retail price is even higher than the price you would choose when purchasing with the Mac Pro.
If you buy a Mac Pro 2019 and choose to include the wheel set, it will only cost you an additional 400 USD for this wheel set. But if you buy the wheel set separately, with the intention of replacing old, broken wheels, it will cost up to 699 USD, equivalent to an iPhone 11.
699 USD for 4 wheels made from stainless steel by Apple is quite an expensive price. However, we are no strangers to this; Apple previously sold a monitor stand for 1,000 USD.
In addition, Apple also sells the stand set for the Mac Pro at a price of 299 USD. This is in case you buy a Mac Pro 2019 with wheels but change your mind and want to switch to a stand for more stability, preventing the computer from rolling around the room. Because the Mac Pro 2019 wheel set does not have brakes or locks to keep it in place.
Source: Theverge