In episode 4 of my video blog I review Orange Pi Zero — the cheapest low-power computer with native Ethernet support, available on AliExpress for only $9. I’m using it as a headless webserver running Armbian to host a ToR relay. With Wi-Fi and USB ports disabled it consumes around 0.5W which amounts to 4.5kWh per year or $1.50.
Board is perfect bu processer heating abnormally.