Megadrive/SMS/Atari controller to USB adapter (v3)

An adapter for connecting Genesis/Megadrive (3/6 button), SMS and Atari-style controllers to an USB port.

Description

This adapter lets you use Megadrive, SMS or Atari-style controllers on your PC. The multitap is also supported, enabling simultaneous use of up to 4 megadrive controllers. This adapter is built using advXarch

technology for low latency.

Specifications:

Supported controllers:
- 6 button megadrive controllers
- 3 button megadrive controllers
- Sega master system controllers
- Atari-style joysticks
- Megadrive multi-taps
- Megadrive mouse (megamouse)
Very low latency
Up to 4 Megadrive controllers can be used simultaneously with a multi-tap
Works under Linux, Mac OS X and Windows
Updateable firmware
1 meter (~3ft) USB A to USB C cable included

Management tool: (more info)

Easy to use user interface able to manage several adapters.
Adapter firmware version display
Firmware update function
Displays the type of controller detected
Adapter configuration:
- Configure D-Pad as axes or buttons
- 1, 2, 3 and 4-player modes

Total Latency information: (more info)

Default setting: 6ms
Minimum settings: 2ms

Drivers:

None! Uses standard drivers included with supported operating systems.

Multitap not included. Without a multitap, only one controller can be connected.

Ordering

Buy here

Coming soon

Release estimate: January-March 2026

Send an e-mail to shop+db9joy_usb_v3@raphnet-tech.com if you would like to be notified when this item becomes available.

Item #	ADAP-DB9JOY-USB_V3
Description	DB9 (Atari/SMS/Megadrive) controller to USB adapter (Version 3)
Price	$27.99
Country of origin	Japan

We normally ship within 5 days (excluding week-ends and holidays) after payment.
Prices are in US dollars and are subject to change without notice.

Compatibility list

IMPORTANT: This is not a complete list. If something does not appear here, it simply means that we did not get the chance (or the idea) to test it, or that no one let us know that it works.

Help us improve this page by sending test results by email to support@raphnet-tech.com
Thanks!

Tested Controllers

Show list...

Model	Tested by	Supported	Comments
3-button controller (Sega 1650)	raphnet.	Yes
6-button controller (Sega MK-1470)	raphnet.	Yes
6-button controller (Sega MK-1653)	raphnet.	Yes
6-button controller (Sega SJ-6000)	User	Yes
Fighter Stick SG-6 (Asciiware model 5720)	raphnet.	Yes
Megamouse (Sega MK-1645)	raphnet.	Yes
SMS controller (Sega model 3020)	raphnet.	Yes
SMS Paddle Control (HPD-200)	raphnet.	Yes
Wico command control	raphnet.	Yes
Atari 2600 joystick	raphnet.	Yes
Competition Pro (SL-6602-SER)	raphnet.	Yes
Atari CX40 joystick	User	Yes
8BitDo M30 controller	User	Partial	The extra button (menu) is not supported.
Atari paddle controller	User	No	Will never be supported by this product.
SMS Phaser (light gun)	User	No	Will never be supported by this product.

Supported multitaps

Show list...

Model	Tested by	Supported	Comments
Multitap (Sega MK-1657)	raphnet.	Yes
Multitap (Sega MK-1654)	raphnet.	Yes
Multitap (Performance P-450)	raphnet.	Partial	This multitap does not work with 6-button controllers

FAQ

Q: What is the difference with version 2?
A: The new version (v3) is built in a new enclosure design and uses a USB C connection. Performance and features have not changed.

Q: What is the latency when using a multitap?
A: Reading the state of 4 controllers through a multitap takes less than 1ms, so it makes no difference. It is as low as when reading a single controller. (That is, unless the multitap itself adds latency, but we don't know if it does...)

Q: Can I use a Megadrive multitap to connect more than 1 SMS or Atari controller?
A: No, unfortunately the Megadrive multitap only supports megadrive controllers. To use more than 1 Atari or SMS controller, you will need one adapter per controller.

Q: Can I connect 4 adapters to concurrently use 4 Atari joysticks?
A: Yes! This has been reported to work fine with Atari800Win Plus 4.1.

Q: Does this adapter work with the C64 mini?
A: No, unfortunately it does not.