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09:14, 12 March 2007 The '''Amstrad Expansion System''' is a DIY project by Dave Goodman and John Attfield.
The Amstrad Expansion System was primarily a rom box for the CPC series, but had additional features:
* 128 - 8bit I/O port.
* Motherboard extension plug for EURO-card modules.
The DIY project consisted of a 16 page instruction leaflet.