Raijintek ships the Styx in a small cardboard box with an image of the chassis on the front and back. You will also find a list of specifications on the rear. Both smaller sides do not really have any additional information - just more views of the case and a mention of which color variant can be found inside.
Two sturdy Styrofoam spacers hold the chassis in place while a simple plastic bag protects the case from scratches and fingerprints.
You will get the basics with the chassis, which is just fine considering the compact size of the Styx. A speaker, two zip ties, and a bag of all-black screws is what you get. On top of that, there is a manual to help you with assembly.