The HP EliteDesk 800 G4 TWR's M.2 slot is NVMe-only — no SATA support
One M.2 2280 slot running PCIe NVMe x4 delivers fast storage, but SATA M.2 drives won’t work here — stick with NVMe.
One M.2 2280 slot running PCIe NVMe x4 delivers fast storage, but SATA M.2 drives won’t work here — stick with NVMe.