Dell Precision 3551
Yes. 2 slots, up to 64 GB seen working.
It takes DDR4-2933 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2933 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
- 30 of 30 reports show this layout
Worked out from 30 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 68 Wh or 97 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 30 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Dell Precision 3551?
Yes. 2 slots, up to 64 GB seen working. It takes DDR4-2933 laptop-size sticks (SO-DIMM).
What type of RAM does the Dell Precision 3551 use?
DDR4-2933 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Dell Precision 3551 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 battery does the Dell Precision 3551 use?
Batteries in these laptops report 68 Wh or 97 Wh, going by 30 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 Precision 3551.