Geez for the prices listed in the article (153 EUR and 301 EUR), get a TMM (tiny mini micro - https://www.servethehome.com/introducing-project-tinyminimic... ) computer. These are the SFF/USFF off-lease older enterprise computers like Dell Optiplex. Note that ServeTheHome.com does power consumption for every model it reviews. These ~1L sized computers idle in the 7-13W range. Even with EU electricity prices, it would…
> Here's an example of a USFF (ultra small form factor) for $110 - https://www.ebay.com/itm/325826958401 Hm... > No adapter is included. Needs 65W or above (most dell/hp laptops around the year it came out are compatible) The 65W power adapter on Dell retails for $46.99 on sale, bringing the grand total to $156.99. And that's just after skimming your link for 2 minutes.
The great thing about these Optiplexes is that they use a standard 20v 4.5x3mm DC jack for power. I run mine off a UPS with a usb-c to barrel jack cable.