Hello there! this is an simple and quick to print holder to support your GPUs sagging rear end, with an M20 thread and a lock-ring it can hold even the heaviest cards with no worries, it is adjustable and should work for most cases. I recommend printing with something other than PLA due to temperature and stress concerns. My k1 Max printed it in an hour and 20 min so it is a nice a fast print! I recommend 3 walls and 15% gyroid infill. No supports are needed!