I got this pre-loved computer from a humble store in Cubao, at quite a low price. Cheaper and faster than a new Raspberry Pi 4B, yet it's a full x86 PC and comes with a 120 GB SSD. It's fanless and idles at 3 to 6 watts according to the interwebs, just about the same power consumption as my router, I think.
Dell markets it as a thin client; the store I got it from sells it as a budget PC; tinkerers like me see it as a perfect little #HomeServer. I already have Ubuntu Server running on it.