The reason we Hack

[TechGod]

That statement made me laugh. You could have a hexagon-shaped connector that is easier to upgrade than a graphics card connected via thunderbolt 3 alone.

http://www.everymac.com/systems/app...-upgrade-mac-pro-cylinder-gpu-video-card.html

Aaaaannd I was wrong. Its just that third parties haven't bothered yet.