Lenovo ThinkCentre M75s Gen 2

Type 11R9 Desktop, from 2022 3 hardware reports
Memory
Up to 16 GB
4 full-size slots
SSD
1+ M.2
At least 1 M.2 SSD slot
Drives and power
Coming next
Checked from separate sources
Upgradable

Yes. 4 slots, up to 16 GB seen working.

It takes DDR4-3200 full-size sticks (DIMM).

Slots
4 DIMM slots
Type
DDR4-3200 288-pin DIMM
Most seen working
16 GB in two or more machines
Firmware says
128 GB maximum (often wrong, so we show what machines run)
SSD slots
At least 1 M.2 SSD slot listed by the firmware
How sure
3 of 3 reports show this layout
See 4 GB DDR4-3200 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 3 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.

4 full-size slots
Illustration

Questions

Can I upgrade the RAM in the Lenovo ThinkCentre M75s Gen 2?

Yes. 4 slots, up to 16 GB seen working. It takes DDR4-3200 full-size sticks (DIMM).

What type of RAM does the Lenovo ThinkCentre M75s Gen 2 use?

DDR4-3200 full-size sticks (DIMM, 288-pin).

How much RAM can the Lenovo ThinkCentre M75s Gen 2 take?

Machines in the reports run up to 16 GB. The firmware reports a maximum of 128 GB, a figure that is often wrong.

Does the Lenovo ThinkCentre M75s Gen 2 have an M.2 SSD slot?

Yes. The firmware lists at least 1 M.2 SSD slot, in 3 reports. Some firmware leaves a slot out, so there may be more.

Is this my desktop?

Check the label on the bottom. It should say ThinkCentre M75s Gen 2, and the type code starts with 11R9. Other type codes share this name: 11JA.