The be quiet! Pure Base 500DX is the objective winner of this comparison, securing a lead in six out of eight evaluated specifications. Its most significant advantage is the inclusion of 2.5" drive bays, which offer a 150% increase in capacity compared to the alternative. This superior storage flexibility makes it the more robust choice for users requiring extensive internal hardware support within their system build.

Users who prioritize storage expansion and overall hardware versatility should select the be quiet! Pure Base 500DX for their next PC. Conversely, the NZXT H5 Flow (2024) is the appropriate choice for budget-conscious builders, as it holds a 5% advantage in MSRP. Those who do not require the additional drive bays and prefer a lower initial cost will find the latter option better suited to their specific financial requirements.