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 5, 1 x 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. 9 x Bracket1 x User Manual1 x Positioning Paper3 x Black Bezels2 x Acrylic Sheets2 x Gloves1 x Power Cord1 x Nut2 x Hex Wrench1 x Accessory Box16 x Accessory Packs Item Type: Computer Open Case BracketMaterial: AluminumModel: PC JMK5Applicable Motherboards: ATX, M ATX, ITX MotherboardsPower Supply Design: ATX Ordinary Large Power SupplyHeat Dissipation Performance: Full Naked Heat DissipationSupport Expansion Hard Disk Storage: 1 x 3.5in, 1 x 2.5inSupport PCI Expansion Slots: 7Switch Interface: Start, Restart Switch and Indicator LightFrame Size After Assembly: L300 x W246 x H353mm Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.