Sega Genesis/Mega Drive 6 button pinout?
Hyperkin Sega Genesis 6-Button Clone Controller Mod - Atari 8-Bit Computers - AtariAge Forums
little-scale: SEGA Master System Control Pad as USB Joystick for Emulated Games
Sega Master System Switchless Region Mod Install Guide | Consoles Unleashed
SMS to Megadrive/Genesis cartridge adaptor
Finally the SEGA SC-3000 emulator for PROPC3 and C3Synapse ready for download! — Parallax Forums
Sega Master System Controller – Raspberryfield – IT, video games and comics
I/O port pinout - Plutiedev
Sega Genesis Programming Part 19: 6 Button Controllers
Sega Master System Technical Info | Consoles Unleashed
9 pin controller socket for MegaDrive & Master System - 2 pack | ZedLabz
TV game joysticks
Any good third-party controllers for Master System? - Retrogaming Roundtable
Retro Atari 7800 Mod: Sega Master System Controller to Atari 2600/7800 Hack : 4 Steps - Instructables
Master system with Genesis controller | SegaXtreme
W65C265SXB: Sega Game Controller Interface PCB (Genesis, Master System, and Atari 2600 Compatible) - YouTube
The Game Controller Port, Deconstructed : psmay
Gear to Gear Port SMS Controller Adaptor - Development - SMS Power!
Sega Master System Controller – Raspberryfield – IT, video games and comics
msarnoff.org - USB Adapter for Sega Genesis Controller
Third Release: SEGA Controllers | Details | Hackaday.io
