4 Things to Know About the TrueNAS Mini X+’s Lack of Expansion

No PCIe slots means no expansion The TrueNAS Mini X+ has zero PCIe slots, so you cannot add any cards for extra storage, networking, or other features.

Four SATA bays are all you get The only internal storage is four SATA bays. Once those are full, you cannot add more drives without buying a new NAS.

Upgrading requires a full replacement If you outgrow the four bays, you must replace the entire unit rather than adding a simple card or external enclosure.

Best for fixed, small home setups This NAS works well if you know your storage needs will never exceed four drives. It is a poor choice if you plan to scale later.