NuttySwissPicked up some HP Chromebox G2 for $13/each, pretty low 2 core 1.8GHz Celeron in them, but they work with 32GB of memory. 64GB boots, but only sees 32GB. Seems to run Ubuntu fairly well. Oh, and they power on with a USB-C power supply. 😎
Builtin Wifi seems to work as well. Took a bit of poking to get it flashed to something more standard than Chromeos. Now to find some sort of USB-C octopus like thing to power a bunch of these, a 16 port passive switch, maybe a cheap SATA SSD with a bit more space, and these should make a decent cheap cluster.
