Dell Latitude 5420
Yes. 2 slots, up to 64 GB seen working.
It takes DDR4-3200 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-3200 260-pin SO-DIMM
- Most seen working
- 64 GB in two or more machines
- Firmware says
- 128 GB maximum (often wrong, so we show what machines run)
- How sure
- 107 of 107 reports show this layout
Worked out from 107 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 42 Wh or 62 Wh.
That is the design capacity the batteries themselves report, and the label can read 1 to 3 Wh higher. Other pack sizes may have shipped, so check the capacity printed on yours before you order.
From 107 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Dell Latitude 5420?
Yes. 2 slots, up to 64 GB seen working. It takes DDR4-3200 laptop-size sticks (SO-DIMM).
What type of RAM does the Dell Latitude 5420 use?
DDR4-3200 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Dell Latitude 5420 take?
Machines in the reports run up to 64 GB. The firmware reports a maximum of 128 GB, a figure that is often wrong.
What battery does the Dell Latitude 5420 use?
Batteries in these laptops report 42 Wh or 62 Wh, going by 107 reports. Other pack sizes may have shipped, so check the capacity printed on yours.
Is this my laptop?
Check the model name on the label underneath. It should read Latitude 5420.