i move my computer around a lot as I'm always going places, but i didn't like the wobble it had when moving it, i watch a lot of Northridge repair. 4090 pcb cracks are common. so i designed this to prevent it. this is with the gpu mounted vertically in the lowest position. i am sure it could be stretched to fit other positions as well by just modifying the height.
all screw holes match up perfectly.

OTHER SUPPLIES NEEDED:
2 m3- 10mm screws to attach part to existing gpu mounting holes on the end of the card
1 case fan screw to attach the gpu to the case.

may improve on the design down the road. but for now this is very stable.