the best holder for me, this is 3rd so far, I had to bend it a bit so it would under my GPU, without it, it was a bit too high like 1-2mm maybe, and the card would not sit properly in PCIE slot, after slight bending of two ends of this flat bar with holes, the PCIE hook engaged and now GPU is super solid, also since I have 4090 it takes like 3.5 slots and bottom support is screwed on last two holes.