The Cullinan MX builds on what the original Cullinan offered and expands on that feature set. It essentially does everything right, which in turn more than justifies the price tag. For 130 dollars, you get all glass side and front panels, great construction quality, and an excellent four fans. On top of that, the Cullinan MX offers great cable management, magnetic dust filters, and the ability to place up to nine storage drives without having to sacrifice liquid-cooling compatibility.
Rosewill also improved on the LED elements from the original Cullinan by going with RGB-equipped fans that may be controlled remotely due to the magnetically attached device on the side of the motherboard tray. Switching colors is easy and quite fun, and you are able to adjust the fan speed with the built-in fan controller independently.
In the interior, there is plenty of space for all your hardware in a traditional layout, but you may also install a GPU vertically due to two extra expansion slots. It would have been the icing on the cake if Rosewill had included the PCIe ribbon cable to allow for such a graphics-card placement, but considering the many other features within, Rosewill may be forgiven that you have to source one yourself instead.
There is very little to critique on the Rosewill Cullinan MX. It is a sleek, high-quality chassis with some awesome features.