The Lian Li O11 Air Mini is the objective winner of this comparison, securing six out of eight total specification categories. Its most significant advantage over the Cooler Master NR200P MAX is its storage capacity for 3.5-inch drives, which is 100% greater. While the Cooler Master NR200P MAX maintains a 50% lead in 2.5-inch bay availability, the overall versatility and hardware support provided by the Lian Li O11 Air Mini make it the superior choice for most system configurations.

Users prioritizing high-capacity mechanical storage should select the Lian Li O11 Air Mini to take advantage of its superior 3.5-inch drive support. Conversely, the Cooler Master NR200P MAX is the better option for builders who specifically require a higher density of 2.5-inch bays for their storage needs. Choosing between these two cases depends entirely on whether your build configuration favors larger mechanical drives or a greater number of smaller form-factor drives.