The NZXT H5 Flow (2024) is the objective winner of this comparison, securing more category victories across the evaluated specifications. Its most significant advantage over the Lian Li O11 Air Mini is its support for larger cooling solutions, offering a 29% improvement in maximum radiator size. This capability allows the NZXT H5 Flow (2024) to accommodate more substantial liquid cooling configurations, providing a clear edge for users prioritizing thermal management and radiator compatibility in their system builds.

Users who require extensive storage capacity should choose the Lian Li O11 Air Mini, as it provides a 300% advantage in 3.5-inch drive bays compared to the alternative. Conversely, those focused on high-performance cooling setups should opt for the NZXT H5 Flow (2024) to take advantage of its superior radiator support. Selecting between these two cases depends entirely on whether your priority is maximizing internal hard drive storage or expanding your liquid cooling potential.