This open-frame computer chassis is designed for easy assembly and disassembly, with a stackable structure. Experience the fun of DIY with its simple construction. Made from high-quality 20*20 aluminum alloy, it offers stable and reliable use. The open frame design ensures excellent heat dissipation. Supports standard ATX large power supplies. Features: Stackable, lightweight, and easy to disassemble naked building block frame. Simple assembly with a straightforward structure for a fun DIY experience. Constructed from high-quality 20*20 aluminum alloy for stability. Open frame design provides excellent heat dissipation. Supports standard ATX large power supplies. Specification: Type: Building Blocks Naked Frame Applicable Motherboard: M-ATX (244 * 244mm/9.6 * 9.6in) Power: ATX Heat Dissipation: Naked Assembly: DIY Extended Hard Drive Position: 1 PCI Extended Slot: 4 Switch Interface: Start/Restart switch and indicator light Material: 20 * 20 Aluminum Alloy + Acrylic Accessories Size: Approx. 360 * 264 * 154mm/14 * 10.4 * 6.1in Color: As Pictures Shown Weight: Approx. 1258g Package List: 4 * Black Brackets 2 * Red Brackets 1 Box of Accessories 1 Box of Screws 1 * Installation Instructions 1 * Accessories Instructions Note: 1. The computer chassis requires self-assembly; please assemble patiently according to the instructions. 2. Some panels are designed for single disassembly; consider this carefully before starting. 3. The motherboard is ITX structure, size must be 244 * 244mm/9.6 * 9.6in or smaller. 4. Regular maintenance of acrylic panels will maintain their original shine after removing the protective film.