Found an Acer EasyStore H340 for €25, upgraded it to a newer motherboard and patched all proprietary motherboard connections: Cheap homelab! : r/homelab
In-depth Review of the Acer Aspire easyStore H340 Windows Home Server - Movies Games and Tech
Vintage NAS Aspire easyStore H340 power supply substitution - YouTube
Acer Aspire EasyStore Home Server H340 for sale online | eBay