@drq that's why there are tool-free front-loading drive bays.
- Because #Windows is not just a literal "Asshole-OS" but refuses to be installed and run off #USB drives!
Also most people don't even have applications that get choked by SATA-6G speeds, and even on modern, crammed cases one can do that (there are also brackets for PCI[e] slots).
- Personally I don't have that Problem but for those that have there are solutions...