Did you actually try it, or are you just going by what it says? I have a Dell slim PC in my youngest son’s room, and I needed to put a low profile card in it. I bought a 4550 card and put it in, and it’s working fine. I can’t remember what the power requirement was, but I know it’s more than what is in the Dell. If I was going to put a card in it, I didn’t have much choice. Most all cards, if not all, require more power than is in the Dell. And I can’t find any power supplies of this type to upgrade the power supply.