Excellent Heat Dissipation: The open chassis design promotes airflow, enhancing heat dissipation for various hardware components and maximizing internal case space. Ample Space: This ITX computer open case provides generous internal installation space. The segmented hardware design optimizes every millimeter. Strong Compatibility: Supports ITX motherboards (17x17cm), standard ATX power supplies, expansion of one hard drive bay (3.5 or 2.5-inch installable), and two PCI expansion slots. Easy Assembly: This open-frame computer case is lightweight and easy to assemble and disassemble. Its simple structure allows for a fun DIY experience. Open Design: This aluminum DIY barebones frame breaks free from traditional chassis structures, further expanding internal space and offering greater freedom in an open design. Specifications: Item Type: ITX Computer Open Case Bracket Material: Aluminum Alloy Applicable Motherboard: ITX Motherboard (Approx. 17 x 17 cm / 6.7 x 6.7 inches) Applicable Power Supply: ATX Standard Size Power Supply Hard Drive Bay Expansion Support: 1 (3.5 or 2.5-inch installable) PCI Expansion Slot Support: 2 Switch Interface: Power, reset switches, and indicator light Assembled Bottom Frame Size: L315 x W210mm Package Contents: 5 x Aluminum Alloy Brackets 1 x User Manual 2 x Paper 4 x Foot Pads 1 x Power Supply 2 x Support Rod 7 x Right Angle Connecting Plate 2 x Screw 2 x Gasket 5 x Acrylic Connecting Card 4 x Black Protective Sheet 2 x Gloves 1 x Accessory Pack 01 1 x Accessory Pack 02/03 1 x Accessory Pack 04 1 x Accessory Pack 05 1 x Accessory Pack 06 1 x Accessory Pack 07 1 x Accessory Pack 08 1 x Accessory Pack 09 Your 100% satisfaction is our top priority. We will provide you with the best service. If you encounter any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will provide you with the best solution!