If you don't need the pinouts, it's likely cheaper to get a used thin client or a N100 based machine. You'd get similar power draw, plus a case and a PSU.

It doesn't seem even close. Rasberry Pi 4 starts at €40 or so, while the cheapest N100 PC my amazon query returns is €180.

I suspect that either you care about performance and the pi loses badly, or you care about price and the pi 4 loses to... probably other pis, actually. Or used x86 off eBay. Or you care about absolute power consumption and again other pis win.

Used thin clients start at 20€, that’s unbeatable (because they include case and PSU, allow SATA Harddrives, replaceable RAM…)

> while the cheapest N100 PC my amazon query returns is €180

Check AliExpress. Much cheaper for N100s.

Raspberry Pi 4 cannot be compared to N100. It's miles behind.