In This Section:

Usb to SMS
AV Jacks
3-D Glasses
Pause Button Mod

Sega Master System Mods:

Welcome, to what I hope one day will become the largest compilation of Sega Master System Mods available on the internet. I intend on having everything from useful Mods to just plain fun ones. The Individual Mods are listed to the left and a short description of each one below. Don't see a Mod here? Email me and I'll do my best to add it.

  • SmsCartPad : Instructions on how to build your own adapter allowing you to use your OEM SMS control pad on your PC with an emulator

  • USB to SMS : Instructions on how to build your very own USB adapter to use an SMS game pad on the PC

  • A/V Jacks : Instructions on how to  install your own composite Audio/Video jacks into a SMS

  • 3-D Glasses : Schematics on how to build your own adapter to use your Sega Glasses on your PC

  • RFU (Rapid Fire Unit) : Schematics on how to build your own RFU (Rapid Fire Unit)

  • Pause Button Mod : Tired of getting up to press the pause button on your SMS? Install this simple switch in your controller.



You will need to have a basic understanding of simple electronics. You will also need to know how to read a schematic. If you do not know the difference between Anode and Cathode then you probably should not try building any of these. I am more than happy to help out though. Feel free to email me with any questions, I am usually pretty quick to respond but sometimes it may take a day or two so please be patient. In either case, whether you do it on your own or you ask me some questions. I WILL NOT be held liable for any damage you may cause. Do these at your own risk.