3 Storage Options in the HP EliteDesk 800 G9 Mini

Two M.2 slots Regarding the HP EliteDesk: The 1-liter chassis supports two M.2 SSDs for fast primary and secondary storage.

One 2.5-inch bay You can also install a single 2.5-inch drive, giving you a mix of speed and capacity.

No PCIe slots There are no PCIe expansion slots, so you cannot add more storage or other cards later.