Features: 1.Excellent Heat Dissipation: The open chassis design is completely exposed for heat dissipation, freeing up the internal space of the chassis. 2.Split Hardware Structure: The split hardware structure is adopted, and the open structure provides you with a large internal installation space. 3.Enjoy DIY: Bare block frame, easy to disassemble, easy to assemble, stackable, fully experience the fun of DIY. 4.Strong Compatibility: Support ATX, M ATX, ITX motherboard, power supply supports ATX ordinary large power supply, support expansion of 1 x 3.5, 1 x 2.5 inch hard disk storage, support 7 PCI expansion slots. 5.Premium Materials: Made of aluminum, it is strong, durable, stable in use and has a long service life. specification:Item Type: Computer Open Case Bracket Material: Aluminum Model: PC JMK5 Applicable Motherboards: ATX, M ATX, ITX Motherboards Power Supply Design: ATX Ordinary Large Power Supply Heat Dissipation Performance: Full Naked Heat Dissipation Support Expansion Hard Disk Storage: 1 x 3.5in, 1 x 2.5in Support PCI Expansion Slots: 7 Switch Interface: Start, Restart Switch and Indicator Light Frame Size After Assembly: L300 x W246 x H353mm PackageList:9 x Bracket 1 x User Manual 1 x Positioning Paper 3 x Black Bezels 2 x Acrylic Sheets 2 x Gloves 1 x Power Cord 1 x Nut 2 x Hex Wrench 1 x Accessory Box 16 x Accessory Packs