1. Only empty chassis (including USB + switch + mounting screws). 2. The case is need your own hands-on assembly. 3. If you don't understand anything, please contact us and we will guide you until the installation is complete. Tips: If your motherboard is MSI B450i, SilverStone Power SX600-G or SilverStone Power SX650-G, please purchase your own graphics extension cable! The computer case is compatible with the following accessories (but does not include the following accessories): 17*17CM ITX motherboard. The length of the graphics card cannot exceed 305mm. SFX Power125*100*63.5）. SFX Power（125*100*63.5）. Parameter: Chassis form: mini chassis. Material: Acrylic +1515 aluminum frame. Internal hard drive location: 2.5" X 2 Compatible motherboard: ITX (Max: 17*17*cm) External output / input interface: USB3.0 X 1 PCI expansion slot: PCI-E X 1.Support graphics card length can not exceed 305MM (reverse 175MM is the graphics card extension cable), remove the front aluminum material, support 320MM length graphics card, but the thickness can not exceed 55MM. cooling system: Fan position (12025), top fan X2 (thickness is 25MM). Support 75MM heat sink (CPU surface to side panel). Size: 330*155*250mm Power: SFX power supply (125*100*63.5)