A Mini-ITX motherboard is a compact type of motherboard designed for small form factor computers. Measuring just 17 x 17 centimeters (6.7 x 6.7 inches), it is ideal for building space-efficient systems while still providing essential features. Mini-ITX boards typically support a single CPU socket, limited RAM slots, and a few expansion slots, making them suitable for basic computing tasks, home theaters, or gaming setups. Despite their small size, Mini-ITX motherboards can support various components, including graphics cards, storage drives, and networking options. They are popular among enthusiasts who want to create custom PCs that save space without sacrificing performance.