Latitude 5591 Setup and Specifications Guide

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Storage

Table 1. Storage specifications The table lists the supported storage devices.
Primary/Boot drive	Primary interface	Secondary drive	Secondary interface	Security option
SSD M.2 2280 SATA: up to 512 GB, OPAL SED options	SATA AHCI, Up to 6 Gbps	M.2 2230 (WWAN slot) NOTE: The second SSD (dual SSD) is only supported when it is purchased as part of the original purchase at time of sale. NOTE: Adding second SSD (dual SSD) is not available after initial purchase. NOTE: 2230 to 2242 adapter board is required to install 2230 WWAN port to SSD.	PCIe 3 x2 NVME, Up to 16 Gbps	YES
SSD M.2 2280 PCIe/NVMe: up to 1TB, OPAL SED options	PCIe 3 x4 NVME, Up to 32 Gbps		PCIe 3 x2 NVME, Up to 16 Gbps	YES
One 2.5 " hard drive: up to 1TB, Hybrid OPAL SED options	SATA AHCI, Up to 6 Gbps		PCIe 3 x2 NVME, Up to 16 Gbps	YES
SSD M.2 2230 PCIe/NVMe : up to 256 GB (in WWAN slot only)	PCIe 3 x2 NVME, Up to 16 Gbps	M.2 2280 SATA	SATA AHCI, Up to 6 Gbps	NO
SSD M.2 2230 PCIe/NVMe : up to 256 GB (in WWAN slot only)	PCIe 3 x2 NVME, Up to 16 Gbps	2.5" hard drive	SATA AHCI, Up to 6 Gbps	NO