3 Things to Know About the Dell OptiPlex 3040 Micro’s M.2 Slot

The M.2 2230 slot is SATA-only, not NVMe It will not support PCIe-based NVMe drives, so you cannot get NVMe speeds from this slot.

The 2.5-inch SATA bay works fine for a regular SSD You can still install a standard SATA SSD in the 2.5-inch bay for storage.

Do not expect modern PCIe bandwidth from the M.2 slot This is a limitation of the machine, so plan your storage upgrade accordingly.