Dell OptiPlex 7040 SFF review: specs, options & used prices

What this machine is

The Dell OptiPlex 7040 SFF is a small form factor, and on the used market it is one of the straightforward ways to get a complete, serviceable computer for a modest sum.

Corporate fleets retire machines like this in batches, which is why the used supply is steady and prices stay predictable.

Tracked used listings cluster around a median of $80 (5 active listings at the time of writing).

Configurations you will actually see

Configurations we track pair the OptiPlex 7040 SFF with the Core i5-6500 and Core i7-6700. These are 6th-generation Intel Core parts. This generation predates official Windows 11 support, worth factoring in if a modern OS baseline matters to you.

Memory options run from 4 GB to 16 GB (4 GB, 8 GB, 16 GB). For a current operating system, treat anything below 8 GB as a first upgrade, not a final configuration.

Solid-state storage options include 128GB SSD and 256GB SSD.

Hard-disk listings (120GB HDD and 1TB HDD) also exist — an SSD remains the single most noticeable upgrade on this class of machine.

Upgrade path and running costs

The compact chassis accepts standard low-profile parts, and drive bays are typically accessible without tools. The trade-off is a small, often proprietary power supply — check it before planning any graphics add-on.

Our compactness rating for this chassis: 75/100 — compact by design.

Who it fits

If the task is browsing, office documents, video calls, or a kiosk/POS role, the OptiPlex 7040 SFF does the job at a low sensible price. It predates official Windows 11 support, which makes it a natural Linux or light-duty candidate — a real factor if a modern OS baseline is required.

The spec sheet carries the full option ladder and tracked prices; for context, browse the desktop catalog or the Dell desktops page.

Verdict

Judged as a tool rather than a toy, the OptiPlex 7040 SFF holds a clear niche at the sensible end of the used market.

Buy it when you need a cheap, repairable machine for its class of work, and verify the configuration before paying — RAM and storage vary widely between listings. Tracked prices span $65 to $104, and most of that spread is configuration, not condition.

Our composite LB Score currently sits at 13/100 — a score that mostly reflects the platform age — use it to compare like with like, not against modern hardware.