I looked at all the old thin clients and didn’t like their power consumption to performance ratio. Ended up buying a cheap mini pc with an n100 and it’s been amazing. CPU is max 15w, but mostly only 1 or 2w. Whole mini pc with an nvme draws only a few w most of the time. I bought it before all the craziness for £80, had it maybe 18 months now and no complaints. It’s been rock solid.