ASUS B121
Laptop, from 2011 4 hardware reports
Memory
Up to 4 GB
1+ laptop-size slot
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. At least 1 slots, up to 4 GB seen working.
It takes DDR3-800 laptop-size sticks (SO-DIMM).
- Slots
- At least 1 SO-DIMM slot
- Firmware lists
- 4 sockets, but no machine in the reports had more than 1 filled. Many laptops list sockets that aren't there, and some workstations hide two slots under the keyboard.
- Type
- DDR3-800 204-pin SO-DIMM
- Most seen working
- 4 GB in two or more machines
- Firmware says
- 16 GB maximum (often wrong, so we show what machines run)
- How sure
- 4 of 4 reports show this layout
See 4 GB DDR3-800 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
From 4 reports of this machine in the Linux Hardware Database (CC BY 4.0). Updated 9 Nov 2026.
1+ laptop-size slot
Illustration Questions
Can I upgrade the RAM in the ASUS B121?
Yes. At least 1 slots, up to 4 GB seen working. It takes DDR3-800 laptop-size sticks (SO-DIMM).
What type of RAM does the ASUS B121 use?
DDR3-800 laptop-size sticks (SO-DIMM, 204-pin).
How much RAM can the ASUS B121 take?
Machines in the reports run up to 4 GB. The firmware reports a maximum of 16 GB, a figure that is often wrong.
Is this my laptop?
Check the model name on the label underneath. It should read B121.