Sega 32X Auto Hertz Switchless Region Mod Kit


Mod Kit Includes:

  • 1 x 32X Auto Hertz Switchless Region Mod-board


  • Auto 50Hz or 60Hz video output for full screen, full speed gaming.
  • Region free
  • Auto sync video rate to any attached Mega Drive
  • Syncs with Mega Drive switchless region mods
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Sega 32X Auto Hertz Switchless Region Mod Kit

The 32X Auto Hertz Switchless Region Mod will force the 32X into the same region as any attached Mega Drive rendering it completely region free and able to run in both 50Hz and 60Hz video refresh rates for full screen and full speed gaming.

This is achieved by using a programmable chip that reads signals sent from the Mega Drive via the cartridge port to adapt the 32X video rate accordingly.

It really has the most benefit when combined with a region modded Mega Drive, however this is not required. The 32X will happily sync to the video rate of any attached Mega Drive.

If you have a 60Hz modded Mega Drive, this 32X mod is necessary to sync the video signals of the 32X and Mega Drive.

No special cables are required or the mono audio line from the Mega Drive output socket to control the 32X.

Mod Kit Variations

Three versions available because I am indecisive and a little bit obsessive. Take your pick.

  1. The original mod board requiring 4 wires
  2. A 1-wire quick solder board
  3. And a no-wire quick solder board

Quick Install Notes

To install the QSB versions some 32X motherboard test points will need cleaning of solder for the mod board to lay flat. This is achievable with some solder braid and flux.

Additional information

Weight N/A
Dimensions N/A
Product Type

Mod Kit

Console Make


Console Model


Mod Kit Variant

No Wire QSB, 1 Wire QSB, Standard

Mod Attribute

50/60Hz, Auto Region, Quick Solder Board, Switchless Region

Designed by

Consoles Unleashed

Coded by


Product Credits

Design & Build

  • Hand made by Consoles Unleashed
  • PCB design by Consoles Unleashed
  • Auto Hertz code by Ikari_01


Ikari_01’s 32X auto hertz project page at GitHub

Ikari_01’s GitHub page


Code is used without a license as it was released into the public domain. It is the authors wish that all attributions remain intact.


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