The Lian Li Lancool III is the objective winner of this comparison, securing victory in five out of eight measured specifications. Its most significant advantage over the competition is its storage capacity, offering 100% more 3.5" drive bays. While the be quiet! Pure Base 500DX falls behind in the total number of winning categories, it remains a competitive alternative for budget-conscious builders, as it holds a 33% advantage in MSRP compared to the Lian Li Lancool III.

Users who prioritize high-capacity storage configurations should choose the Lian Li Lancool III to take advantage of its superior drive bay count. Conversely, the be quiet! Pure Base 500DX is the better selection for those seeking to maximize their budget, as it provides a more favorable MSRP. Both cases offer distinct benefits, so the final decision should depend on whether your primary requirement is internal storage expansion or a lower initial purchase cost.