The Phanteks NV5 is the objective winner of this comparison, securing victories in six out of eight evaluated specifications. Its most significant advantage over the competition is its capacity for 2.5" storage drives, which offers a 100% improvement in bay count. While the Lian Li O11 Air Mini falls behind in the total number of winning categories, it remains a specialized alternative for users prioritizing different storage configurations.

Choose the Lian Li O11 Air Mini if your build requires a higher density of 3.5" drives, as it provides a 300% advantage in that specific area. Conversely, select the Phanteks NV5 if your primary requirement is maximizing the number of 2.5" bays for your storage needs. Each case serves a distinct purpose based on these specific drive capacity differences, allowing you to prioritize the storage layout that best fits your hardware requirements.