There is a version for 400 dollars
Minisforum has started selling BD770i and BD790i motherboards with pre-installed CPU and cooling systems.
The new product is interesting because it formally offers a mobile processor for creating a desktop PC, however, this mobile processor itself is actually a copy of the desktop one, only with a limitation in power.
BD770i is powered by the Ryzen 9 7745HX, while the BD790i offers the top-end 16-core Ryzen 9 7945HX. In both cases, the board itself is the same and has a Mini-ITX form factor. In addition, there is a pre-installed CO with a small fan, but a very large radiator.
The younger version costs $400, and the older version costs $520.
As for the rest, there is PCIe 5.0 support and HDMI 2.0, DisplayPort 1.4, USB-C 3.2, USB 3.2 (x2), USB 2.0 (x2) and RJ45 ports.