Sony VPCW21S1R
Laptop, from 2009 3 hardware reports
Memory
Up to 1 GB
1 laptop-size slot
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. One slot, up to 1 GB seen working.
It takes DDR2 laptop-size sticks (SO-DIMM).
- Slots
- 1 SO-DIMM slot
- Type
- DDR2 200-pin SO-DIMM
- Most seen working
- 1 GB in two or more machines; one machine runs 2 GB
- How sure
- 3 of 3 reports show this layout
See 8 GB DDR2 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 3 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
1 laptop-size slot
Illustration Questions
Can I upgrade the RAM in the Sony VPCW21S1R?
Yes. One slot, up to 1 GB seen working. It takes DDR2 laptop-size sticks (SO-DIMM).
What type of RAM does the Sony VPCW21S1R use?
DDR2 laptop-size sticks (SO-DIMM, 200-pin).
How much RAM can the Sony VPCW21S1R take?
Machines in the reports run up to 1 GB, and one runs 2 GB.
Is this my laptop?
Check the model name on the label underneath. It should read VPCW21S1R.