ASTER RACKIT — BUYING CHECKLIST
A drive bay is not a storage architecture.
https://www.aster-rackit.com/resources/buying-guides/drive-paths

[ ] Bay map with media type for each position
[ ] Drive manufacturer PN, OEM PN and firmware
[ ] Backplane, cables, RAID/HBA and cache-protection scope
[ ] Boot device and RAID/software entitlement
[ ] Raw capacity, usable-capacity target and spare policy
[ ] Replacement-drive and carrier compatibility evidence

Alternative drive layouts are not additive. SAS, SATA, NVMe and EDSFF terminology must stay tied to the documented backplane and controller path.
Original procurement guidance. Engineering considerations are not a manufacturer-validated configuration or a performance guarantee.