I worry - and I desperately want to be proven wrong here - that the 4090 won't fit in the 2019 Mac Pro case. The only card that looks as if it could fit is the Nvidia 4090 Founders Edition - BUT it looks like it's a little too wide to fit with the power cable attached.
I currently have an ASUS TUF 3090 OC card. It's 299.9mm LENGTH x 126.9mm WIDTH x 51.7mm HEIGHT. It comfortably fits with maybe 5mm LENGTH to spare. The power cables neatly comes out of the side of the card and allow the case to slide closed barely touching the cables. It's a perfect size for the case.
The Nvidia 4090 Founders Edition card is 304mm LENGTH x 137mm WIDTH x 61mm HEIGHT (3-slots). It looks as if it'll comfortably fit in lengthways as it's 4.1mm longer than the TUF 3090 OC card and there's at least 5mm to spare in the case. WIDTH seems to be the issue. It's 10.1mm wider. Sure, there's probably enough in the case to take this additional 10.1mm - BUT once you add the power connector, I genuinely don't think the case will be able to slide closed.
I've watched a few YouTube videos of the power cable attached to the card and even bending the cables at a 90 degree angle to the connector, I just can't see the case being able to clear the power connectors.
I've researched all other 3rd party cards and they're all far too long to fit in the 2019 Mac Pro case. The Nvidia card seems to be our only hope.
Can anyone with access to a 4090 Nvidia card see if it'll fit in the 2019 Mac Pro WITH the power connectors attached and case closed?
Thanks!