BitWrangler wrote on Today, 02:42:

Oh, I wonder if it's that "Book PC" formfactor that never seemed to take off in the west.

No, that's just Shuttle's "XPC" Mini-PC proprietary design. They released 10s of these XPC models over a span of 15 years at least, all built around the same design and cooling concept.
And they were pretty awesome and efficient, got a couple of them over the years 😀

That's this specific motherboard in its natural habitat: