Fujitsu LIFEBOOK U938
Yes, you can add one stick. Up to 20 GB seen working.
4 GB is soldered to the board and one slot is free for a DDR4-2400 laptop-size stick.
- Free slots
- 1 SO-DIMM slot
- Type
- DDR4-2400 260-pin SO-DIMM
- Soldered
- 4 GB
- Most seen working
- 20 GB in two or more machines
- Firmware says
- 20 GB maximum
- How sure
- 6 of 6 reports show this layout
Worked out from 6 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 50 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 6 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Fujitsu LIFEBOOK U938?
Yes, you can add one stick. Up to 20 GB seen working. 4 GB is soldered to the board and one slot is free for a DDR4-2400 laptop-size stick.
What type of RAM does the Fujitsu LIFEBOOK U938 use?
DDR4-2400 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Fujitsu LIFEBOOK U938 take?
Machines in the reports run up to 20 GB. That matches the 20 GB maximum the firmware reports.
What battery does the Fujitsu LIFEBOOK U938 use?
Batteries in these laptops report 50 Wh, going by 6 reports. Other pack sizes may have shipped, so check the capacity printed on yours.
Is this my laptop?
Check the model name on the label underneath. It should read LIFEBOOK U938.