Features: Multi-sided heat dissipation holes, strong heat dissipation effect. The top cover is also equipped with a heat dissipation net that covers only the position of the CPU heatsink. SECC material with 0.7mm thickness, selected materials, hot-dip galvanized steel plate, with high corrosion resistance, toughness, and no deformation. Heat dissipation design quickly cools and has a large number of heat dissipation holes to ensure the stability of the machine during operation and the lifespan of the hardware. Brand new and high quality Exquisite layout, more reasonable space. Reasonable interior, for THN-TX motherboard. Suitable for motherboards: MINI-ITX ultra-thin board (under 17x17cm), only supports motherboards with for DC IN self-powered. Specifications: Color: Black Material: SPCC Size: approx. 196.5x19.8x4.5cm/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