Features: Multi-sided heat dissipation holes for strong and effective cooling. The cover also features a heat dissipation mesh specifically positioned over the CPU heatsink. Made from 0.7MM thick SECC material, selected for its high corrosion resistance, toughness, and resistance to deformation. The heat dissipation design provides high-speed cooling with numerous ventilation holes to ensure machine stability during operation and extend hardware lifespan. Brand new and high quality. Exquisite layout for more efficient space utilization. A well-designed interior, suitable for THN-TX motherboards. Suitable for motherboards: MINI-ITX ultra-thin boards (under 17x17cm), only supports motherboards with DC IN self-sufficiency. Specifications: Black color Material: SPCC Size: about 19.65x19.8x4.5cm/7.74x7.80x1.77in Note: No retail package. Please allow 0-1cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1pc x Chassis 1Set x Mounting Screws