The Corsair 2500X and the Phanteks G400A are tied in this comparison, as each case secures two wins across the eight evaluated specifications. The Corsair 2500X holds the advantage in maximum power supply unit length, offering a 10% improvement over its competitor. Conversely, the Phanteks G400A provides a significant benefit regarding cooling hardware, featuring an included fan count that is 100% better than the alternative.

Choose the Corsair 2500X if your build requires extra clearance for a larger power supply unit. This option is best suited for users prioritizing specific internal component dimensions. Select the Phanteks G400A if you prefer a chassis that comes pre-equipped with a higher number of cooling fans. This model is the superior choice for builders who want to maximize out-of-the-box airflow without needing to purchase additional cooling hardware separately.