This model is an adjustable GPU support, meant to rest discretely on the motherboard side of the graphics card.
Adjustable height, 50mm-75mm
It takes 2 standard motherboard screws (#6–32 x 3/16″)
There is a slot in the bottom for an optional magnet. (12x3mm cylinder)
It was custom made for an NZXT H6 Flow but should work for many cases that have an available spot.
The author marked this model as their own original creation.