Features: 1.A light and compact bare frame of building blocks, easy to disassemble and can be superimposed. 2.Support independent graphics card, which requires optional graphics card accessories. 3.20x20 aluminum profile with stable vertical structure. 4.Open chassis design, good heat dissipation. Support ATX ordinary power supply. 5.Simple aluminum profile construction, for you to fully experience DIY fun. specification: 1. A light and compact bare frame of building blocks, easy to disassemble and can be superimposed. 2. Support independent graphics card, which requires optional graphics card accessories. 3. 20x20 aluminum profile with stable vertical structure. 4. Open chassis design, good heat dissipation. Support ATX ordinary power supply. 5. Simple aluminum profile construction, for you to fully experience DIY fun. 6. Good compatibility, support ATX, M-ATX, for ITX motherboard. 7. You can even carry it away, which need to be equippped with a handle. s: Chassis Style: Bare Metal Frame Applicable Motherboard: for ITX Motherboard (17 x 17cm) M-ATX, ATX Motherboard Power Supply Design: ATX Ordinary Power Supply Thermal Performance: Full Bare Heat Dissipation Chassis Assembly: DIY Self-Assembly Support for Extended Hard Drive Positions: 1x 3.5inch, 1x 2.5inch Support PCI Expansion Slots: 7 Switch Interface: Start Switch and Indicator Chassis Material: 20x20 Aluminum Profile / Acrylic Accessories Size: (LxWxH)Approx. 315x246x353mm/12.40x9.69x13.9inch (After Assembly) Color: Black, Red Optional Package List: 9 x Aluminum Alloy Pipe 4 x Bracket Gasket and Screw Bag 1 x Installation Assistance Accessories Screw Type Box (Plastic Box) 1 x Mounting Assistance Accessory Bezel Type Box (Paper Box) 1 x Installation Instructions Manual Note: 1. The chassis needs to be installed by DIY yourself. Be patient and follow the instructions. 2. Some panels are designed for disassembly at one time, so start after considering and preparing. 3. The motherboard is of size 305x244m and less. 4. Regular maintenance of the acrylic panel will maintain the brightness of the original tear film for a long time. 5. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.