The Phanteks NV5 is the objective winner of this comparison, securing a lead in five out of eight evaluated specifications. Its most impactful advantage over the Corsair 3000D Airflow is the inclusion of fans, which represents a 100% improvement in that category. While the Corsair 3000D Airflow maintains a 100% advantage in 3.5" drive bay capacity, the Phanteks NV5 ultimately provides a more comprehensive feature set across the majority of the measured technical fields.

Users who prioritize out-of-the-box cooling hardware should choose the Phanteks NV5 for its superior fan inclusion. Conversely, the Corsair 3000D Airflow is the better selection for builders who require extensive storage capabilities, as it offers double the 3.5" drive bay capacity of its competitor. Selecting between these two cases depends entirely on whether your specific build configuration demands higher internal storage volume or a more complete set of pre-installed cooling components.