The open air computer graphics cards rack holder is convenient and practical, with excellent texture, and can serve you for a long time without being easily . The craftsmanship can serve you well without breaking easily. This is a very practical open air computer component holder. Features -Color: Black. -Material: Cold-rolled sheet. -Size: About 50.00X26.80X24.00cm/19.65X10.53X9.43in. - The rack can fully protect GPU and other electronic components. - Support ATX power supply and multiple cooling fans for stable operation. - Used to protect the GPU and electronic equipment, to keep all cables clean and orderly, as well as all items in your mining machine. - Good craftsmanship and ensure its durability and practicality. - Special design and it is in fine craftsmanship. It is the best replacement for your old, broken one. Note: Motherboard size: 305x245mm (not included). Graphics specifications: graphics length is not , support 6 cards 81MM, 8 cards spacing 61MM. (cards is not included) Heat sink: CPU heat sink height 95MM (not included). Support power supply: support ATX power supplies, support extended power supply (not included). Storage device: SSDX2andHDDX1(not included). Fan specifications: 12CM fan X4(not included). Screw usage: Fixed rack 12PCS, fixed graphics cards 8CPS, fixed power supply 4PCS. Package list: 1 x graphic cards bracket 9 x hexagonal 11 x motherboard screws 35 x hexagonal screws