Excellent Heat Dissipation: The open chassis design promotes optimal airflow, facilitating heat dissipation for various hardware components and maximizing internal space. Ample Space: The ITX computer open chassis bracket provides generous internal installation space, with a partitioned hardware design that maximizes every millimeter. Strong Compatibility: Supports ITX motherboards (17x17cm), ATX standard-size power supplies, one hard drive storage expansion (3.5 or 2.5 inches can be installed), and two PCI expansion slots. Easy Assembly: The open chassis bracket is a bare frame, lightweight and easy to disassemble, stackable, simple to assemble, and allows you to experience the fun of DIY. Open Design: The aluminum DIY frame breaks free from traditional chassis structure constraints, further expanding the internal space and offering a higher degree of freedom in the open structure.