Dell Latitude 7490
Yes. 2 slots, up to 64 GB seen working.
It takes DDR4-2400 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2400 260-pin SO-DIMM
- Most seen working
- 64 GB in two or more machines
- Firmware says
- 32 GB maximum (often wrong, so we show what machines run)
- How sure
- 143 of 143 reports show this layout
Worked out from 143 hardware reports of this laptop. Sources and method. Updated 10 Nov 2026.
Yes. It takes an NVMe M.2 SSD.
The slot runs at PCIe 3.0 x4, up to about 3.9 GB/s. A faster PCIe 4.0 drive works too, at that speed. M.2 drives come in 2230, 2242 and 2280 lengths (30, 42 and 80 mm). Check the length printed on your current drive before you order.
- Drive type
- NVMe (PCIe)
- Slot speed
- PCIe 3.0 x4, from 62 machines
- Length
- Check your current drive
- How sure
- NVMe drive in 101 of 160 machines
From 160 PCI device reports. Sources and method. Updated 10 Nov 2026.
Illustration Batteries in these laptops report 42 Wh or 60 Wh.
That is the design capacity the batteries themselves report, and the label can read 1 to 3 Wh higher. The pack size depends on the configuration, so check the capacity printed on yours before you order.
- Capacity
- 42 Wh or 60 Wh
From 140 battery readings. Sources and method. Updated 10 Nov 2026.
Illustration Match the label on your charger.
We don't have this model's charger rating yet. The label on your charger shows it: the output line gives volts and amps, and volts times amps is the watts (19.5 V at 3.33 A is 65 W). Buy one with the same plug, the same voltage and at least as many watts.
- Rated output
- On your charger's label
How to read a charger label. Sources and method. Updated 10 Nov 2026.
Illustration Questions
Can I upgrade the RAM in the Dell Latitude 7490?
Yes. 2 slots, up to 64 GB seen working. It takes DDR4-2400 laptop-size sticks (SO-DIMM).
What type of RAM does the Dell Latitude 7490 use?
DDR4-2400 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Dell Latitude 7490 take?
Machines in the reports run up to 64 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.
What SSD does the Dell Latitude 7490 take?
Yes. It takes an NVMe M.2 SSD. The slot runs at PCIe 3.0 x4, up to about 3.9 GB/s. A faster PCIe 4.0 drive works too, at that speed. M.2 drives come in 2230, 2242 and 2280 lengths (30, 42 and 80 mm). Check the length printed on your current drive before you order.
What battery does the Dell Latitude 7490 use?
Batteries in these laptops report 42 Wh or 60 Wh. Check the capacity printed on yours before you order.
Is this my laptop?
Check the model name on the label underneath. It should read Latitude 7490.