The Dell OptiPlex 7090 SFF tops out at 4 TB of internal storage

Between the M.2 NVMe slot and the 2.5-inch SATA bay, the 7090 SFF can hold up to 4 TB total — 2 TB for each drive. It’s a straightforward two-drive setup with no surprises: one fast NVMe drive and one SATA drive for bulk storage.