Dell Inspiron 5402
Yes. At least 2 slots, up to 16 GB seen working.
It takes DDR4-3200 laptop-size sticks (SO-DIMM).
- Slots
- At least 2 SO-DIMM slots
- Firmware lists
- 8 sockets, but no machine in the reports had more than 2 filled. Many laptops list sockets that aren't there, and some workstations hide two slots under the keyboard.
- Type
- DDR4-3200 260-pin SO-DIMM
- Most seen working
- 16 GB in two or more machines; one machine runs 32 GB
- Firmware says
- 128 GB maximum (often wrong, so we show what machines run)
- How sure
- 20 of 20 reports show this layout
Worked out from 20 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 53 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 19 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Dell Inspiron 5402?
Yes. At least 2 slots, up to 16 GB seen working. It takes DDR4-3200 laptop-size sticks (SO-DIMM).
What type of RAM does the Dell Inspiron 5402 use?
DDR4-3200 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Dell Inspiron 5402 take?
Machines in the reports run up to 16 GB, and one runs 32 GB. The firmware reports a maximum of 128 GB, a figure that is often wrong.
What battery does the Dell Inspiron 5402 use?
Batteries in these laptops report 53 Wh, going by 19 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 Inspiron 5402.