Dell Latitude E6400
Laptop, from 2008 105 hardware reports
Memory

Up to 8 GB
2 laptop-size slots
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 8 GB seen working.
It takes DDR2-800 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR2-800 200-pin SO-DIMM
- Most seen working
- 8 GB in two or more machines
- Firmware says
- 8 GB maximum
- How sure
- 90 of 105 reports show this layout
See 4 GB DDR2-800 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 105 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

2 laptop-size slots
Illustration Questions
Can I upgrade the RAM in the Dell Latitude E6400?
Yes. 2 slots, up to 8 GB seen working. It takes DDR2-800 laptop-size sticks (SO-DIMM).
What type of RAM does the Dell Latitude E6400 use?
DDR2-800 laptop-size sticks (SO-DIMM, 200-pin).
How much RAM can the Dell Latitude E6400 take?
Machines in the reports run up to 8 GB. That matches the 8 GB maximum the firmware reports.
Is this my laptop?
Check the model name on the label underneath. It should read Latitude E6400.