Sony VPCZ12S9R
Laptop, from 2011 2 hardware reports
Memory
Up to 6 GB
2 laptop-size slots
SSD and charger
Coming next
Checked from separate sources
Only 2 machines reported so far, so this answer rests on few examples. Check the label or open the panel before you buy.
Upgradable
Yes. 2 slots, up to 6 GB seen working.
It takes the same type of laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Most seen working
- 6 GB in two or more machines
- How sure
- 2 of 2 reports show this layout
Worked out from 2 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
2 laptop-size slots
Illustration Questions
Can I upgrade the RAM in the Sony VPCZ12S9R?
Yes. 2 slots, up to 6 GB seen working. It takes the same type of laptop-size sticks (SO-DIMM).
How much RAM can the Sony VPCZ12S9R take?
Machines in the reports run up to 6 GB.
Is this my laptop?
Check the model name on the label underneath. It should read VPCZ12S9R.