CPU
8th Generation Intel Kaby Lake Refresh Quad Core ULV i7-8550U or Intel Coffee Lake-H Quad Core i5-8300H/8400H or Hexa Core i7-8750H/8850H Processor
Memory Type
PC4-21300 2666MHz DDR4 260pin SO-DIMM Laptop Memory
Standard Memory
up to 32GB
Memory Expansion Slots
2 SO-DIMM slots
USB Ports
Three USB v3.1 Gen-1 Type-A Ports and One USB v3.1 Gen-2 Type-C Thunderbolt-3 Display Port
Card Reader
Integrated Micro SD 4.0 Card Reader Slot: (SD/SDHC/SDXC)
Original Optical Drives
External Option Only
Original Hard Drives
Optional in models with the Smaller 51Whr/68Whr Batteries Installed - 500GB, 1TB 5400RPM or 7200RPM SATA III 6Gb/s Hard Drive or 500GB, 1TB 5400RPM 8GB MLC NAND SATA III 6Gb/s Solid State Hybrid Drive
Original Solid State Drives
128GB, 256GB, 512GB M.2 NGFF (2280) SATA III 6Gb/s Solid State Drive or 128GB, 256GB, 512GB, 1TB M.2 NGFF (2280) PCIe NVMe 3.0 x4 Solid State Drive or 128GB, 256GB M.2 NGFF (2230) PCIe NVMe 3.0 x2 Solid State Drive in WWAN Slot
Drive Notes
The Dell Latitude-5591 Laptop Comes in 2 Different Drive Options Depending on the Battery Installed and Supports Single and Dual Drive Configurations. (One 2.5" Solid State Drive or Hard Drive with the Smaller 51Whr/68Whr Battery Installed and/or One M.2 (2230) Solid State Drive in the WWAN Slot) or (One M.2 (2280) or (2230) Solid State Drive in the Primary M.2 Slot and/or One M.2 (2230) Solid State Drive in the WWAN Slot with the Larger 92Whr Battery) Note: Models that have the larger 92Whr battery do not support 2.5" Drives due to the larger battery occupying the 2.5" Drive bay. When the M.2 (2280) or (2230) Drive is installed in the primary M.2 slot, the M.2 Drive occupies the 2.5" Drive bay. The M.2 (2230) Drive uses a adapter bracket p/n 07HMH to accommodate for the larger M.2 (2280) slot. If replacing the 2.5" Drive for a M.2 Drive, you will need the M.2 Drive thermal support bracket p/n 3XDN4 and mounting bracket p/n 2FFR0 for installation. If replacing the primary M.2 Drive for a 2.5" Drive, you will need the 2.5" Drive caddy p/n 6F7DD and cable p/n 6NVFT for installation. The primary M.2 slot supports M.2 (2280) and (2230) SATA and PCIe NVMe 3.0 x4 Solid State Drives and the WWAN slot supports M.2 (2230) PCIe NVMe 3.0 x2 Solid State Drives only. (The M.2 2230 to 2242 Adapter Board is Required to Install a M.2 (2230) Drive in the WWAN Slot)