Dell Business Laptop

Dell Latitude 7640

Dell Latitude 7640. Name from Dell; documented OEM specifications (battery / memory / storage / display / adapter options from the owner's manual) are listed separately from part numbers. No FRU/SPS part fits yet. Not bench-tested.

Documented OEM specifications (15)

Options and constraints from the manufacturer manual. These are documented specs, not replacement part numbers (not FRU/SPS fitments).

Battery options

Source: manual section Dell service manual dell.com checked 2026-11-05
  • Option: 2-cell, 38 Wh, lithium ion, ExpressCharge™
    Voltage: 7.60 VDC
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.
  • Option: 3-cell, 57 Wh, lithium ion, ExpressCharge™
    Voltage: 11.40 VDC
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.
  • Option: 2-cell, 38 Wh, lithium ion, Long Lifecycle, ExpressCharge™
    Voltage: 7.60 VDC
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.
  • Option: 3-cell, 57 Wh, lithium ion, Long Lifecycle, ExpressCharge™
    Voltage: 11.40 VDC
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.

Memory

Source: manual section Dell service manual dell.com checked 2026-11-05
  • Capacity: 8 GB to 32 GB
    Slots: On-board memory | NOTE:Not ungradable
    Type: Dual-channel, LPDDR5
    Speed: 4800 MT/s
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W. || onboard/integrated non-upgradeable (as printed)
  • Supported configurations: 8 GB, Dual-Channel LPDDR5, 4800 MT/s | 16 GB, Dual-Channel LPDDR5, 4800 MT/s | 32 GB, Dual-Channel LPDDR5, 4800 MT/s
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W. || onboard/integrated non-upgradeable (as printed)
  • NOTE: Not ungradable
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W. || onboard/integrated non-upgradeable (as printed)

Storage

Source: manual section Dell service manual dell.com checked 2026-11-05
  • Your computer supports the following storage configurations: One M.2 2230 solid-state drive The M.2 2230 solid-state drive is the primary drive of your computer.
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.
  • Type: M.2 2230 solid-state drive
    Interface: PCIe NVMe Gen4 x4
    Capacity: 256 GB/512 GB/1 TB/2 TB
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.
  • Type: M.2 2230 solid-state drive, Self-encrypting drive, Opal 2.0
    Interface: PCIe NVMe Gen4 x4
    Capacity: Up to 256 GB
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.

Power adapter options

Source: manual section Dell service manual dell.com checked 2026-11-05
  • 60 W AC adapter, USB-C
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.
  • 65 W AC adapter, USB-C
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.
  • 100 W AC adapter, USB-C
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.

Display options

Source: manual section Dell service manual dell.com checked 2026-11-05
  • display type: Full High Definition Plus (FHD+)
    Touch: No
    Resolution: 1920 x 1200
    luminance: 250 nits
    diagonal: 406.46 mm (16.00 in.)
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.
  • display type: Full High Definition Plus (FHD+)
    Touch: Integrated touch
    Resolution: 1920 x 1200
    luminance: 300 nits
    diagonal: 406.46 mm (16.00 in.)
    Scope: compatibility_note: On-board dual-channel LPDDR5 4800 MT/s, 32 GB maximum; manual note literally says Not ungradable. One M.2 2230 PCIe NVMe Gen4 x4 SSD. 38 Wh 2-cell 7.60 VDC or 57 Wh 3-cell 11.40 VDC. 16-inch 1920 x 1200 IPS with non-touch and integrated-touch options. USB-C adapters 60/65/100 W.

Compatible Replacement Parts (0)

Compatibility from OEM documentation or a labelled source, with a confidence level on each fit; not bench-tested. Documented specifications above (when present) are not part-number fitments.

Documented OEM specifications above are not spare part numbers. Exact PN/FRU fitments for this model are still limited.

No documented parts yet

LPF lists this model by name only. No part numbers are documented for it yet; they are added only when a manufacturer document supports them.

Every documented fit links to its source.

Submit Service Manual →

Fit check: Always confirm the OEM part/FRU number on your machine's label or in the service manual before buying. Dell page

Where to buy

Sponsored links: We may earn a commission from links on this page. Affiliate disclosure

Key facts

Model
Dell Latitude 7640
Brand
Dell
Series
Latitude
Documented parts
0
Last checked
2026-11-03
Tested
Not bench-tested; documentation only
Machine-readable
JSON, Markdown