Notice before purchasing the product: By default, only the computer case shell is sold (without case fan and other accessories, please note) Product dimensions:345*290*224mm aluminum alloy casing Supported motherboard specifications:ATX(305*245mm)/ ITX(170*170mm)/MATX(245*245mm) Support radiator specifications:The height limit of the radiator is 70mm PCIe extension:Seven and a half high pcie(Limited length 240mm) Supported power specifications:SFX (125x100x63.5mm) SFX-L(125x125x63.5mm) Backboard specifications:SATA backplane * 2, each with two large 4D interfaces and four SATA connectors Supported hard drive specifications:8* 3.5-inch hot swappable hard drive slots+6 *2.5-inch hard drive slots