It arrived...
I grabbed the PSU from my Razer Core X and a blower fan from a Dell Optiplex and got this janky setup going, duct tape and all.
Turned on the power, and it started outputting video. So far so good, so I rebooted and mashed delete...
Sweet, it can boot from USB. Plugged my Ventoy drive into it...
That was too easy. I selected my Windows to Go image to boot...
...and it booted into Windows with no issues (aside from no GPU drivers).
And there we go, the BC-250 booted into Windows 10. It has 6 cores, 12 threads, 16GB of memory (though only 4GB are usable), and an R7 2700X wipes the floor with it.
Interesting that it reports as an AMD 4700S. I mean, it's the same SoC, so not sure what else I would've expected.
One more pic of my janky setup after some small adjustments for good measure...
Next step is to put an NVMe drive in it and see how far I can get in Windows. Stay tuned...