XCY X46G is a cheap industrial fanless mini PC powered by an Intel Celeron 2955U or Pentium 3805U CPU going for $60 and up.
the 14-pin CM4 IO header, as well as the usual DSI, CSI and RTC hookups. The Mini ITX design is a particular boon. The Seaberry can easily be slapped into a mini PC case, and the power button and ...