HP Pro 3330 MT
Desktop, from 2011 4 hardware reports
Memory

Up to 4 GB
2 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 4 GB seen working.
It takes DDR3-1333 full-size sticks (DIMM).
- Slots
- 2 DIMM slots
- Type
- DDR3-1333 240-pin DIMM
- Most seen working
- 4 GB in two or more machines; one machine runs 8 GB
- Firmware says
- 16 GB maximum (often wrong, so we show what machines run)
- How sure
- 4 of 4 reports show this layout
See 8 GB DDR3-1333 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 4 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.

2 full-size slots
Illustration Questions
Can I upgrade the RAM in the HP Pro 3330 MT?
Yes. 2 slots, up to 4 GB seen working. It takes DDR3-1333 full-size sticks (DIMM).
What type of RAM does the HP Pro 3330 MT use?
DDR3-1333 full-size sticks (DIMM, 240-pin).
How much RAM can the HP Pro 3330 MT take?
Machines in the reports run up to 4 GB, and one runs 8 GB. The firmware reports a maximum of 16 GB, a figure that is often wrong.
Is this my desktop?
Check the model name on the front or the label of the case. It should read Pro 3330 MT.