This open air computer component holder rack is made of , which can withstand use. Features the cold rolled sheet material, which has high durability, not easy to deform. Fine workmanship, ensures practicality.Features-Color: Black.-Material: Cold-rolled sheet.-Size: About 50.00X26.80X24.00cm/19.65X10.53X9.43in.- This Ethernet graphics cards holder rack supports power supply and ATX motherboard.- The distance between the motherboard and the graphics adapter board is wide, which is convenient for maintenance.- It is easy to move and reserve enough space for equipment .- There is enough space between the graphics cards for stable heat dissipation.- It is manufactured with professional technology to ensure the of the product and can work for a long time.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: 2 x graphic cards bracket18 x hexagonal 22 x motherboard screws70 x hexagonal screws