Features: 1.Bare building blocks frame, lightweight and easy to install and disassemble, which can be stacked. 2.Easy assembling with the simple structure, you can fully enjoy the fun of DIY. 3.It is made of high-quality 20x20 aluminum alloy material, sturdy and durable, and supports for ATX ordinary large power supply. 4.Open frame design, with good heat dissipation performance, suitable for overclocking testing. 5.Adopting high craft, precise hole position, convenient for install. specification:Item Type: Computer Case Applicable Mainboard: MATX (244x244mm/9.6x9.6in) Power: ATX ordinary large power supply Heat Dissipation: Bare Assembly: DIY Extended Hard Disk Position: 1 (3.5in or 2.5in) PCI Extended Card Slot: 4 Switch Interface: Start/restart switch and indicator light Material: 20x20 Aluminum Alloy/Acrylic Accessories Assembled Size: Approx. 360x264x154mm/14x10.4x6.1in PackageList:6 x Black Brackets1 Box of Auxiliary Tool1 Box of Screw (Plastic Box Packed)1 x Installation Instruction1 x Accessories Instruction Note1. 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 MATX structure, the size must be 244x244mm/9.6x9.6in or smaller. 4. Regular maintenance of acrylic panels will maintain the original bright after tear off the film.