Welcome to our store! Excellent Heat Dissipation: The open chassis design promotes optimal airflow, facilitating heat dissipation for various hardware components and fully utilizing the internal chassis space. Ample Space: The ATX computer open chassis bracket provides a vast internal installation space, and the divided hardware construction maximizes every millimeter. Strong Compatibility: Supports ITX motherboards (305 x 244 mm), ATX standard large power supplies, hard drive storage expansion (3.5 or 2.5 inches can be installed), and 4 PCI expansion slots. Easy to Assemble: The computer open chassis bracket is a bare block frame, lightweight and easy to disassemble, stackable, simple to assemble, and easy in construction, allowing you to fully experience the joy of DIY. Open Design: The aluminum DIY bar frame breaks the shackles of traditional chassis design, further expanding the internal space of the chassis and offering a higher degree of freedom in the open structure. Item Type: ATX Computer Open Chassis Bracket Material: Aluminum Alloy Applicable Motherboard: ATX Motherboard (Approx. 305 x 244 mm / 12 x 9.6 inches) Applicable Power Supply: ATX Standard Large Power Supplies Hard Drive Bay Expansion Support: 1 (3.5 or 2.5 inches can be installed) PCI Expansion Slot Support: 4 Switching Interface: Start, Restart Switch, and Indicator Light Bottom Frame Size After Assembly: Approx. 422.5 x 248 mm / 16.6 x 9.8 inches Package Includes: 6 x Bracket 4 x Foot Plate 7 x Right Angle Connecting Plate 7 x Support Rod 1 x Power Cord 7 x Screw 7 x Gasket 7 x Acrylic Connecting Board 4 x Black Protective Sheet 1 x Accessory Bag 1 x Piece of Paper 2 x Gloves 1 x User Manual Accessory Packages: (Various) Customer satisfaction is our top priority. If you encounter any issues with your product upon receipt, such as damage or incorrect quantity, please contact us immediately. We are committed to providing you with the best customer service.