Fujitsu ESPRIMO P3521

Desktop, from 2010 7 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 DDR2-1066 full-size sticks (DIMM).

Slots
2 DIMM slots
Type
DDR2-1066 240-pin DIMM
Most seen working
4 GB in two or more machines; one machine runs 8 GB
Firmware says
8 GB maximum (often wrong, so we show what machines run)
How sure
7 of 7 reports show this layout
See 8 GB DDR2-1066 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 7 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 Fujitsu ESPRIMO P3521?

Yes. 2 slots, up to 4 GB seen working. It takes DDR2-1066 full-size sticks (DIMM).

What type of RAM does the Fujitsu ESPRIMO P3521 use?

DDR2-1066 full-size sticks (DIMM, 240-pin).

How much RAM can the Fujitsu ESPRIMO P3521 take?

Machines in the reports run up to 4 GB, and one runs 8 GB. The firmware reports a maximum of 8 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 ESPRIMO P3521.