Mini-ITX motherboards are compact, space-saving alternatives to ATX, designed for small form factor PCs and home theater systems. Measuring just 170 × 170 mm, these boards are perfect for cases with limited space, offering portability and energy efficiency. A typical Mini-ITX board features a single PCIe x16 slot, which allows for the installation of one discrete graphics card. Due to size limitations, RAM slots are usually restricted to two, but modern chipsets can still support 32GB–128GB of memory, enough for gaming and productivity. Storage options include a mix of SATA and M.2 slots, providing fast SSD support. Many Mini-ITX boards come with built-in Wi-Fi and Bluetooth, reducing the need for extra expansion cards. However, VRM design and cooling options are more limited than ATX, which can impact overclocking potential. Despite their size, premium Mini-ITX models pack powerful features, making them suitable for compact gaming rigs and portable workstations. With their balance of performance and size, Mini-ITX motherboards are popular among PC enthusiasts who value minimalist builds, HTPC setups, or systems that can be easily moved while still providing solid computing performance.