Having owned an O11 and also an O11 Mini (My current case). Along side with building upward of 100 PC's on O11 based cases, I'd say go for either the O11 EVO if you a smaller footprint, or the O11 XL for a larger build. The normal O11 is surprisingly narrow and POSSIBLY (Not saying fact here!) POSSIBLY won't be able to accommodate the width of the 4090 cards.