The be quiet! Dark Base Pro 901 is the objective winner of this comparison, securing five category wins against the single victory held by the Thermaltake CTE C750 Air. The most significant advantage offered by the be quiet! Dark Base Pro 901 is its storage capacity, providing 150% more 2.5" bays than its competitor. This substantial lead in drive support makes it the superior choice for users prioritizing extensive internal hardware expansion and versatile storage configurations.

Users who require maximum storage density should select the be quiet! Dark Base Pro 901 for its superior bay count. Conversely, the Thermaltake CTE C750 Air is the better option for budget-conscious builders, as it holds a 30% advantage in MSRP. Choosing between these two cases depends entirely on whether your primary requirement is the increased storage flexibility provided by the former or the cost efficiency offered by the latter.