HP ProDesk 400 G2 review: specs, options & used prices

What this machine is

As used-market small form factors go, the HP ProDesk 400 G2 is a known quantity: standard parts, a wide configuration ladder, and steady supply on the secondary market.

Business-line machines are the backbone of the secondary PC market for a practical reason: they were sold in large volumes to offices, serviced professionally, and then retired in bulk.

Only 1 tracked listing survives for this model, so treat any quoted price as indicative rather than a market consensus.

Configurations you will actually see

Configurations we track pair the ProDesk 400 G2 with the Core i5-4590S. These are 4th-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 8 GB to 8 GB (8 GB). 8 GB is workable for one person; 16 GB is the comfortable setting for typical office and home use.

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 ProDesk 400 G2 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.

Full specifications, current options and tracked prices live on its spec sheet; the desktop catalog and the HP desktops page help place it among the alternatives.

Verdict

The case for the ProDesk 400 G2 is simple: standard parts, predictable supply, and a price that leaves room in the budget for upgrades.

Price data is thin for this model, so compare current listings directly rather than relying on a quoted median — configuration differences dominate on this class of machine.

Our composite LB Score currently sits at 10/100 — a score that mostly reflects the platform age — use it to compare like with like, not against modern hardware.