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Sega Master System Switchless Region Mod Kit

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This kit includes;

  • 1 x Custom Master System Mod-board (Switchless Region)
  • 1 x Kingbright 'Red (Yellow) Green' Ultra Bright 5mm Clear LED
  • Plus online digital install instructions

When the Master System Switchless Region Mod is correctly installed the console will be able to run games in their correct aspect ratio and speed.

The reset button is used to cycle through the video refresh rates.

  • Setting 1 = Green LED – 60Hz
  • Setting 2 = Red LED – 50Hz

If you are running your PAL systems in 50Hz, you are really doing the games a great disservice. I consider these switchless mods necessary for PAL consoles.


  • Manufactured by Consoles Unleashed
  • PCB designed by Consoles Unleashed
  • Switchless Region code by Seb (Saturn code edited for Master System by WolfSoft)