Sega Master System / Mark III Bluetooth Controller Adapter

Play your Sega Master System / Sega Mark III the way you want — wirelessly, using modern Bluetooth controllers.

This Bluetooth controller receiver plugs straight into the console’s DB9 controller port, letting you pair compatible wireless gamepads and enjoy classic Sega titles without trailing cables. It’s a clean upgrade for collectors and daily players alike: simple setup, responsive inputs, and the option to customise button mapping if you want to fine-tune your layout.

Why you’ll love it

Made for Sega Master System / Mark III (DB9)
Designed specifically for the Master System family controller port.

Wireless Bluetooth controller support
Use many popular modern Bluetooth pads (varies by controller model/version).

Plug & play setup
Plug into the controller port, pair your controller, and you’re ready to go — no soldering, no console mods.

Low-latency gameplay
Built for responsive retro gaming with minimal input lag.

Optional web configuration (button mapping)
If you want to tweak layout/mappings, many adapters in this category support browser-based configuration.

Firmware update support (future-proofing)
Keep compatibility and features up to date where supported.

Compatibility
Consoles: Sega Master System (and Sega Mark III) via DB9 controller port.

Controllers: Compatible Bluetooth gamepads (common modern pads typically supported; exact compatibility can vary by controller firmware/model).

What’s included
1× Bluetooth controller receiver adapter (DB9)

Perfect for: retro collectors, living room setups, streaming original hardware, and anyone wanting wireless comfort on real Sega hardware.