Accessories and Documentation
The hardware box that broke free from its confines did all right. On the outside you get a contents checklist for all the screws and risers, but there is more inside.
Not only do you get the hardware listed on the outside, there is a mat for the little cubby on the top that is backed with a sticker so you can permanently set it if you want to. You also receive a motherboard speaker.
The manual covers everything from the top to the bottom. It shows how to remove the top to gain access to the fans, how to use the louvers, everything you are going to need to know to make this case function and get your build completed.
The steel trays use larger screws that pass through the rubber grommets for mechanical hard drives. To install an SSD, you would use the smaller screws and the four small holes drilled in the trays.
This is what it looks like with a mechanical drive. If you have an SSD use the pair of holes on either side, furthest from the edges.