Bill's Boards, USA
A1000, A500
side expansion port
    expansion chassis
  • a set of three boards:
    • driver board - connects to the side expansion port and drives a high quality / low loss cable which feeds the motherboard
    • motherboard - holds the expansion slots
    • bus termination board
  • six Zorro II slots
  • six or seven ISA (four or five AT, two XT) slots which are inline with three Zorro slots
  • the arrangement of the slots is similar to the A2000 motherboard
  • the Zorro slots do not fully support the three additional interrupt lines of the Zorro II specification (compared to Zorro I)
  • the motherboard is sized and drilled to fit in a baby IBM AT case (which is not supplied)
  • a power supply is required but not supplied