FocusIT A3000 Internal Expansion

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 FocusIT A3000 Internal Expansion Option A (top)

  FocusIT A3000 Internal Expansion Option A (back)

 FocusIT A3000 Internal Expansion Option A (bottom) 

 FocusIT A3000 Internal Expansion Option B (top) 

  FocusIT A3000 Internal Expansion Option B (back)

  FocusIT A3000 Internal Expansion Option B (Bottom)

The Syscom Products A3000 Internal Expansion mini-podule was badged and sold by several companies including Focus IT and Oak. There was a range of 3 internal expansions which replicated the I/O ports on the BBC Micro. The 3 mini-podules are:

• Option A User port only.
• Option B User and Analogue ports.
• Option C User and Analogue ports and disc buffer to allow connection of additional, external, floppy disc drives.

The User port uses an R6522AP Peripheral Interface Adapter. The Analogue port uses an NEC D7002C Analog/Digital converter.

Options A and B are pictured above.
 
I have no documentation for this minipodule.