The Antec Flux Pro is the objective winner of this comparison, securing victories in six out of eight evaluated specifications. Its most significant advantage is the Max Cooler Height, which outperforms the Lian Li A4-H2O by 236 percent. This substantial lead in thermal clearance makes the Antec Flux Pro the superior choice for users prioritizing cooling compatibility and hardware flexibility within their system build.

Users who require extensive air cooling support should select the Antec Flux Pro for its vastly superior cooler height capacity. Conversely, the Lian Li A4-H2O is the better option for those who prioritize storage density, as it offers a 50 percent advantage in the number of 2.5-inch drive bays. Choosing between these two cases depends entirely on whether your build configuration demands larger cooling solutions or additional small-form-factor storage capacity.