Lenovo ThinkPad T440S
Type 20AQ Laptop, from 2014 27 hardware reports
Memory

Up to 8 GB
1 laptop-size slot
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. One slot, up to 8 GB seen working.
It takes DDR3-1600 laptop-size sticks (SO-DIMM).
- Slots
- 1 SO-DIMM slot
- Type
- DDR3-1600 204-pin SO-DIMM
- Most seen working
- 8 GB in two or more machines
- Firmware says
- 12 GB maximum (often wrong, so we show what machines run)
- How sure
- 26 of 27 reports show this layout
See 8 GB DDR3-1600 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 27 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 Lenovo ThinkPad T440S?
Yes. One slot, up to 8 GB seen working. It takes DDR3-1600 laptop-size sticks (SO-DIMM).
What type of RAM does the Lenovo ThinkPad T440S use?
DDR3-1600 laptop-size sticks (SO-DIMM, 204-pin).
How much RAM can the Lenovo ThinkPad T440S take?
Machines in the reports run up to 8 GB. The firmware reports a maximum of 12 GB, a figure that is often wrong.
Is this my laptop?
Check the label on the bottom. It should say ThinkPad T440S, and the type code starts with 20AQ.