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iconNES, SNES, DB9 (Atari/SMS/Genesis) or TGFX16/PC-Engine to USB conversion circuit
Product Description:
This circuit allows you to convert one of the following game controllers to USB:
  • SNES controller or mouse
  • NES controller
  • Genesis 3 and 6 button controller or Multi-tap (Use 4 controllers at the same time!)
  • Atari style joystick/controller. Implemented by many 8bit systems such as: Atari, Commodore, Sega Master System... Typically, those joysticks have a DB9 connector.
  • TurboGrafx-16/PC-Engine controller
The software implements a standard USB HID (Human input device) device so it is directly supported by most operating systems without installing special drivers. Perfect for playing old games with emulators. Works great with other games too!

The circuit is small enough to fit inside an heat shrink tubing or pvc pipe. It's even possible to fit the circuit directly inside an original controller.

Open source project!:
If you feel that you may be able to build this yourself, all the information you need is on my snes/nes to usb and atari to usb project pages.

This product can convert only 1 controller or 1 Genesis multi-tap. See also the 4nes4snes adapter circuit.

Owners manual - English versionM_NSDB9_PCB_ENG3.pdf
Wiring diagrams for old versions - Englishnes_snes_atari_old_diagrams.pdf

Picture Gallery:


The circuit


Fits inside original gamepads (on this picture, Sega Master System)


Supports the SNES mouse


Exemple: Sega Master System controller converted to USB


TG16 controllers supported

Ordering:In stock! Ships within 7 business days (*)
Item #DescriptionPriceAdd to cartcart
BRD-NSDB9-USB Nes/Snes/DB9/TGFX to USB: Fully assembled and tested circuit. Just solder your USB and gamepad wires 19.99 $
Note: Prices are in canadian dollars (CAD) and may change without prior notice.