Welcome to our store! 1. Excellent Heat Dissipation: The open chassis design promotes better airflow, aiding in heat dissipation for various hardware components and maximizing the internal space of the chassis. 2. Ample Clearance: The ATX computer open case bracket provides generous internal installation space, and the split hardware design ensures every millimeter is utilized effectively. 3. Strong Compatibility: Supports ITX motherboards (305 x 244 mm), ATX standard large power supplies, expansion for one hard drive (3.5 or 2.5 inch), and 4 PCI expansion slots. 4. Easy to Assemble: This computer open case bracket is a bare frame, lightweight, and easy to disassemble, stackable, and simple in structure, allowing you to fully experience the fun of DIY. 5. Open Design: The aluminum DIY bare frame breaks free from the constraints of traditional chassis structures, further expanding the internal space of the chassis and offering greater freedom in its open design. Item Type: ATX Computer Open Case Bracket Material: Aluminum Alloy Applicable Motherboard: ATX Motherboard (Approx. 305 x 244 mm / 12 x 9.6 inches) Applicable Power Supply: ATX Ordinary 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 Assembled Bottom Frame Size: Approx. 422.5 x 248 mm / 16.6 x 9.8 inches Package Includes: 6 x Brackets 4 x Foot Pads 7 x Right Angle Connector Plates 7 x Support Rods 1 x Power Cable 7 x Screws 7 x Gaskets 7 x Acrylic Connector Boards 4 x Black Protective Sheets 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 Customer Priority: Our customers are our top priority. If you find any issues with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We are committed to providing you with the best after-sales service.