Dynabyte -- Z80 CPU Board This was the only Z80 CPU board Dynabyte made. It was
utilized in all their systems.
The board board seems well designed and quite complex. It was used in their
5100 and 5200 systems. It had a
parallel port as well as two serial ports on board.
It had POJ capability to any 4k boundry. The manual can be
obtained
here.