The Phanteks G400A is the objective winner of this comparison, securing victories in seven out of eight evaluated specifications. Its most significant advantage over the Cooler Master NR200P MAX is the inclusion of fans, which provides a 100% improvement in that category. While the Cooler Master NR200P MAX maintains a lead in storage capacity with 50% more 2.5" bays, it falls behind in the majority of the measured hardware metrics.

Users prioritizing out-of-the-box cooling performance should select the Phanteks G400A, as it offers double the number of included fans compared to its competitor. Conversely, the Cooler Master NR200P MAX is the better choice for builders who require a higher density of 2.5" drive bays for their storage configuration. Your final decision should depend on whether your build requires superior integrated airflow or additional mounting points for small-form-factor storage drives.