As is, the original NEC PC Engine SuperGrafx, also known as just the SuperGrafx, outputs only composite video. This mod will upgrade the console to output RGB.

A comprehensive install includes the following:

  • Replace the 5 pin DIN with an 8 pin DIN to support the extra RGB pins
  • Install RGB amp designed for NEC consoles
  • remove the centre plastic post from the shell that is known to puncture a hole in the main PCB
  • replace 2 ceramic capacitors on the board to remove jailbars in video output


  • A SuperGrafx system must be provided in good working condition
  • RGB amp and 8 pin DIN port are provided as part of this install

PC Engine SuperGrafx RGB install

  • Brand: NEC
  • Product Code: SG_RGB
  • Availability: In Stock
  • $75.00 CAD

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