We track 58 mini PCs that people actually buy secondhand: Lenovo ThinkCentre Tiny, Dell OptiPlex Micro and HP EliteDesk and ProDesk Mini business machines, plus consumer mini PCs from Beelink, GMKtec, Minisforum, Intel and ASUS. Each model page lists the specs that matter to a used buyer (CPU generation, RAM type and official limit, M.2 and SATA slots, Ethernet, vPro, the power adapter), what to check before you buy, and which jobs the machine is good for, using rules you can read on each use page.
Specs come from manufacturer spec sheets, manuals and product pages. When we couldn’t verify a detail, we left it out rather than guess. Prices come only from dated eBay snapshots, never from a number we made up. How all of that works is on the methodology page.
This store is part of allbutnew, a family of sites that give a second opinion on secondhand. Our links to eBay are plain links: we earn nothing from them. If you have a mini PC to sell, every model page has a link to get an offer from us.