Lenovo ThinkStation P330

Type 30C5 Desktop, from 2020 2 hardware reports

Drives and power

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. 4 slots, up to 64 GB seen working.

It takes DDR4-2666 full-size sticks (DIMM).

Slots: 4 DIMM slots
Type: DDR4-2666 288-pin DIMM
Most seen working: 64 GB; one machine runs 64 GB
Firmware says: 64 GB maximum
How sure: 2 of 2 reports show this layout

See 16 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 2 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 ThinkStation P330?

Yes. 4 slots, up to 64 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).

What type of RAM does the Lenovo ThinkStation P330 use?

DDR4-2666 full-size sticks (DIMM, 288-pin).

Is this my desktop?

Check the label on the bottom. It should say ThinkStation P330, and the type code starts with 30C5. Other type codes share this name: 30CY, 30D1, 30C6.