Dell Inspiron 5721
Check before you buy.
Every machine in the reports has exactly 8 GB. Some laptops report soldered memory as a slot, so we can't confirm a free slot on this one. Open the bottom panel or check the maker's manual first.
- Slots listed
- 2 SO-DIMM slots
- Type
- DDR3-1600 204-pin SO-DIMM
- Most seen working
- 8 GB in two or more machines
- Firmware says
- 16 GB maximum (often wrong, so we show what machines run)
- How sure
- 8 of 8 reports show this layout
Worked out from 8 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 44 Wh or 60 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 7 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Dell Inspiron 5721?
Check before you buy. Every machine in the reports has exactly 8 GB. Some laptops report soldered memory as a slot, so we can't confirm a free slot on this one. Open the bottom panel or check the maker's manual first.
What type of RAM does the Dell Inspiron 5721 use?
DDR3-1600 laptop-size sticks (SO-DIMM, 204-pin).
How much RAM can the Dell Inspiron 5721 take?
Machines in the reports run up to 8 GB. The firmware reports a maximum of 16 GB, a figure that is often wrong.
What battery does the Dell Inspiron 5721 use?
Batteries in these laptops report 44 Wh or 60 Wh, going by 7 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 Inspiron 5721.