Four main PC case sizes available in 2025

In 2025, there are four main PC case sizes: Mini-ITX/MicroATX, Mini Tower, Mid-Tower, and Full Tower. Each size supports different motherboard types and offers varying space for components, affecting airflow and cooling options. Mini-ITX cases are compact, ideal for small setups, while Mini Towers provide more room without being too large. Mid-Towers are the most common, offering versatility and a range of options. Full Towers are the largest, accommodating extensive cooling solutions and larger components. Choosing the right case depends on your specific needs and the components you plan to use. Each case type has its strengths and weaknesses, impacting the overall building experience and performance.