Features:1. It is a Nude building blocks frame, lightweight and convenient disassembly, which can be stacked.2. Easily assembling with the simple structure, you can fully experience the fun of DIY.3. Made of high-quality 20* 20 aluminum alloy, steady for use.4. Open frame design has good heat dissipation performance.5. Support ATX ordinary large power supply.Specification:Type: Blocks Bare FrameApplicable Mainboard: ITX (17 * 17cm/6.7 * 6.7in)Power: ATX Heat Dissipation: NudeAssembly: DIYExtended Hard Disk Position: 1pcsPCI Extended Card Slot: 2pcsSwitch Interface: Start/restart switch and indicator lightMaterial: Aluminum Alloy + Acrylic AccessoriesSize: Approx. 315 * 210 * 154mm/12.4 * 8.3 * 6.1inColor: As Pictures ShownWeight: Approx. 907gPackage list:3 * Black Brackets2 * Red Brackets1 Box of Auxiliary Means1 Pack of Screws1 * Installation Instructions1 * Accessories InstructionsNote:1. The computer case needs to be installed by yourself. Please be patient and assemble according to the instructions.2. Some panels are designed with one-time disassembly, which should be considered carefully before starting.3. The main board is ITX structure, the size must be 170*170mm or less.4. Regular maintenance of acrylic panels will maintain the original bright after tear off the film.