Dell Latitude E5420

Laptop, from 2011 38 hardware reports
Memory
Up to 16 GB
2 laptop-size slots
SSD and charger
Coming next
Checked from separate sources
Upgradable

Yes. 2 slots, up to 16 GB seen working.

It takes DDR3-1333 laptop-size sticks (SO-DIMM).

Slots
2 SO-DIMM slots
Type
DDR3-1333 204-pin SO-DIMM
Most seen working
16 GB in two or more machines
Firmware says
16 GB maximum
How sure
38 of 38 reports show this layout
See 8 GB DDR3-1333 SO-DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 38 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 E5420?

Yes. 2 slots, up to 16 GB seen working. It takes DDR3-1333 laptop-size sticks (SO-DIMM).

What type of RAM does the Dell Latitude E5420 use?

DDR3-1333 laptop-size sticks (SO-DIMM, 204-pin).

How much RAM can the Dell Latitude E5420 take?

Machines in the reports run up to 16 GB. That matches the 16 GB maximum the firmware reports.

Is this my laptop?

Check the model name on the label underneath. It should read Latitude E5420.