Features: CPU Heatsink Height Limit: Without hard disk, the height limit of the heatsink is 73mm; with 25mm 3.5“ hard disk, the height limit of the heatsink is 45mm; with 20mm 3.5” hard disk, the height limit of the heatsink is 50mm; With 15mm 2.5“ Solid Disk, the height limit of the heatsink is 55mm; with 9mm 2.5” Solid Disk, the height limit of the heatsink is 61mm; with 7mm 2.5” Solid Disk, the height limit of the heatsink is 63mm. 9mm 2.5“ Solid Disk, the height limit of the heat sink is 61mm; 7mm 2.5” Solid Disk, the height limit of the heat sink is 63mm. Note: After installing a 3.5“ 2.5” hard disk, it is not possible to install a half-height device; Space-saving: Suitable for desktop use, saving space while providing powerful hardware support to meet users' pursuit of a small, high-performances computer. Well-designed, with good heatsink structure and ventilation system to ensure the stable operation of high-performances hardware for long time. Specifications: Model: A10 Small Chassis Color：Silver/Black Component: Metal Size：about 30.3x26.2x9.2cm/11.93x10.31x3.62in Package Includes: 1PC A10 Small Chassis note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.