Here is a Raspberry Pi case that lets you build your own personal cloud cluster. The 8 Slot Cluster Cloudlet has a stackable design. It comes with 8 bays for single board computers and 2.5″ hard drives. You also get four 50x50mm quiet fans.
Also check out:
You can bolt multiple units together vertically or horizontally for modular clusters.
Disclaimer: *Our articles may contain affiliate links. Please read our disclaimer on how we fund this site. As an Amazon Associate, we earn from qualifying purchases.