Fractal Design Define R5 Review - Interior | bit-tech.net
The eight main internal drive trays are divided between a top cage of five and a lower one of three. Both cages are removable using thumbscrews, and you can configure the storage layout in numerous ways to suit your needs. For example, you can rotate the top cage to better align it with case airflow, or secure it to the top or bottom of the chassis. Also, the bottom three-bay cage can be moved further into the case (closer to the PSU) using the fan mounts. All in all it's a very flexible design, and one that is much improved over that of the Define R4.