Simtec 16-bit IDE interface for Acorn Archimedes

This is a Simtec 16-bit IDE interface for Archimedes which I have fitted in my Acorn Archimedes A410/1. The photo below shows the card in its original form as shipped. As you'll see, my card has a few differences from the official Simtec photo including, 2 grey headers rather than black, different capacitors, surface mount IC, no power connector.

In order to make the card fit into the Archimedes case and support a CF to IDE active adapter and CF Card without extra cables, the header at the back of the card was replaced with a 90 degree PCB mount header inste