We can spot here the 6 (?) expansion slots (Apple II compatible) and the 2 cpu : the 6502 (for Apple II compatibility) and the Z80 (for CP/M compatibility).
[The as-yet unnamed compute museum](http://pcmuseum.i-o.net.au/)
Documentation such as manuals and schematics are now available at my blog here: https://jbretro.wordpress.com/2018/09/01/fox-640-computer/
I purchased a complete Fox 640 computer from local seller (Canberra, ACT) who kept all the original documentation, which was scanned and shared above.
''One of the most interesting Apple ][ clones I have seen. This machine claims to be a "Multi-System" computer, and the manual speaks of future advancements, allowing other systems to be housed. Basically, it is an Apple ][ with a Z80 Card, which can boot into CP/M or Apple ][ software. Instead of saying APPLE ][ on boot, it says -:FOX:-''