Alienware 15 R2
Yes. 2 slots, up to 16 GB seen working.
It takes DDR4-2133 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2133 260-pin SO-DIMM
- Most seen working
- 16 GB in two or more machines; one machine runs 32 GB
- Firmware says
- 32 GB maximum (often wrong, so we show what machines run)
- How sure
- 3 of 3 reports show this layout
Worked out from 3 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 60 Wh or 67 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 3 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Alienware 15 R2?
Yes. 2 slots, up to 16 GB seen working. It takes DDR4-2133 laptop-size sticks (SO-DIMM).
What type of RAM does the Alienware 15 R2 use?
DDR4-2133 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Alienware 15 R2 take?
Machines in the reports run up to 16 GB, and one runs 32 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.
What battery does the Alienware 15 R2 use?
Batteries in these laptops report 60 Wh or 67 Wh, going by 3 reports. Other pack sizes may have shipped, so check the capacity printed on yours.