80-90mm Dual Fan Rack Mount PCI Slot Cover Bracket Video Card

slot bracket - PCIe Lian Li Lian Li O11DMINI-1W-4 Mini Riser Card + PCI slot bracket - PCIe , 200mm, white GELI-855 star rating Conversion kit

These are proprietary PCIe bracket sizes and retention slot is a standard low profile slot too

pcie slot x16 bracket for PC, also called slot bracket or card holders Those are equipped with cut-outs which offer a secure mechanical connection of the IO connectors

pcie 40 gpu in 30 slot slot solution Single slot IO bracket offers the possibility to use adjacent slot PCIe bracket Compatible with reference design GeForce® GTX 1080 Ti