Welcome to the store! 1. Excellent heat dissipation: The open chassis design helps dissipate heat from various hardware components and frees up internal space within the chassis. 2. Modular hardware structure: The modular design provides ample internal installation space. 3. High compatibility: Supports MATX motherboard (244 x 244 mm / 9.6 x 9.6 in), power supply supports ATX standard power, supports expansion of a hard drive compartment (3.5 or 2.5 inch can be installed), supports 4 PCI expansion slots. 4. Easy installation and disassembly: It features a modular frame that is easy to disassemble and assemble, allowing you to fully experience the fun of DIY. 5. Premium material: Made of aluminum, which is strong, durable, stable in use, and has a long lifespan. Product Type: MATX Computer Open Case Bracket Material: Aluminum Model: PC JMK6 MATX Motherboard Compatibility: MATX motherboard (approx 244 x 244 mm / 9.6 x 9.6 in) Power Supply: ATX standard power Heat Dissipation Performance: Full exposed heat dissipation Hard Drive Compartment Expansion Support: 1 (3.5 or 2.5 inch can be installed) PCI Expansion Slot Support: 4 Break Interface: Power-on/off switch and indicator lamp Bottom Frame Size After Installation: L360 x B248mm 6 x mounting hardware 1 x positioning paper 4 x feet pads 1 x power supply 7 x right-angle mounting plates 4 x support rods 4 x screws 4 x washers 7 x acrylic call cards 4 x black bumper covers 1 x accessory box 2 x gloves 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 1 x user manual Your 100% satisfaction is our highest priority. We will provide you with the best service. If you find any issues after receiving the product, such as damage or incorrect quantity, please contact us immediately for the best solution!