The Rosewill Cullinan MX ships in a plain brown box with very little information on it. Besides an outlined image of the case, you won't find any other tangible information. That is not really a bad thing as most orders will be placed online. The package is quite sturdy, and the Cullinan MX is further protected by thick foam spacers and a plastic bag.
Besides the manual, you will receive a sorted set of black screws, plenty of zip ties, and a remote control for the RGB element.