Welcome to the shop! 1、Excellent Heat Dissipation: The open chassis design promotes optimal airflow, aiding in heat dissipation for all hardware components and fully utilizing the internal chassis space. 2、Ample Space: This ATX open computer case provides a vast internal installation area, with a segmented hardware design that maximizes every millimeter. 3、Strong Compatibility: Supports ITX motherboards (305 x 244 mm), standard ATX power supplies, hard drive expansion (3.5 or 2.5 inch drives can be installed), and 4 PCI expansion slots. 4、Easy Assembly: The open computer case features a bare block frame that is lightweight, easy to disassemble, stackable, and simple in structure, allowing you to fully enjoy the fun of DIY. 5、Open Design: The aluminum DIY bare frame breaks free from traditional chassis structure constraints, further expanding the internal chassis space and offering a higher degree of freedom in its open structure. Item Type: ATX Computer Open Case Bracket Material: Aluminum Alloy Applicable Motherboard: ATX Motherboard (Approx. 305 x 244 mm / 12 x 9.6 in) Applicable Power Supply: ATX standard large power supply Hard Drive Bay Expansion Support: 1 (3.5 or 2.5 inch can be installed) PCI Expansion Slot Support: 4 Switch Interface: Power, Reset switch, and indicator light Bottom Frame Size After Assembly: Approx. 422.5 x 248 mm / 16.6 x 9.8 in Includes: 6 x Bracket 4 x Foot Pad 7 x Right Angle Connecting Plate 7 x Support Rod 1 x Power Cord 7 x Screw 7 x Gasket 7 x Acrylic Connection Board 4 x Black Protective Sheet 1 x Accessory Box 1 x Paper 2 x Gloves 1 x User Manual 1 x 01 Accessory Package 1 x 02/03 Accessory Package 1 x 04 Accessory Package 1 x 05 Accessory Package 1 x 06 Accessory Package 1 x 07 Accessory Package 1 x 08 Accessory Package 1 x 09 Accessory Package Your 100% satisfaction is our top priority. We are committed to providing you with the best service. If you encounter any issues upon receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will provide you with the best solution!