I wouldn't bother. You can get things like a used Lenovo M70q which gives you the tiny form factor, upgradable memory, NVMe storage, 10G Usb-C and with a 10th,

I wouldn't bother. You can get things like a used Lenovo M70q which gives you the tiny form factor, upgradable memory, NVMe storage, 10G Usb-C and with a 10th, or 11th if you are patient enough, Gen i5 for £200. That will blow all these SBCs and thin clients out of the water. If you don't need 10th gen Intel, and are okay with 7th, you can drop below £100. It will be really interesting at this low end once they have to start competing with used Framework boards.