Excellent Heat Dissipation: The open chassis design is fully exposed for heat dissipation, freeing up internal chassis space. Modular Hardware Structure: Utilizes a modular hardware structure; the open design provides ample internal installation space. Enjoy DIY: Bar block frame, easy to disassemble, easy to assemble, stackable – fully experience the fun of DIY. Strong Compatibility: Supports ATX, M-ATX, ITX motherboards; power supply supports standard ATX power supplies; supports expansion of 1 x 3.5", 1 x 2.5" hard drive storage; supports 7 PCI expansion slots. Premium Material: Made of aluminum, it's strong, durable, stable in use, and boasts a long lifespan. Item Type: Open Computer Case Material: Aluminum Model: PC JMK5 Applicable Motherboards: ATX, M-ATX, ITX motherboards Power Supply Design: Standard ATX power supply Heat Dissipation Performance: Full-exposure heat dissipation Hard Drive Storage Expansion Support: 1 x 3.5", 1 x 2.5" PCI Expansion Slots Supported: 7 Switch Interface: Power, reset switch, and indicator light Assembled Frame Size: L300 x W246 x H353mm Package Includes: 9 x Fasteners 1 x User Manual 1 x Positioning Paper 3 x Black Frames 2 x Acrylic Panels 2 x Gloves 1 x Power Cord 1 x Nut 2 x Hex Key Wrench 1 x Accessory Box 16 x Accessory Packets Customer satisfaction is our top priority. If you encounter any issues with your product upon receipt, such as damage or incorrect quantity, please contact us immediately. We strive to provide the best after-sales service.