RetroGameBoyz is an authorized US seller.
(16-32 have partnered up! )

Get it fast. Usually ships same day or within 2 business days.

Important: please read & FAQ below!

It allows you to load Atari 2600 ROMs ONLY on both the Atari 2600+ and 7800+ systems.

• Ready to Ship - Limit 2 Per Customer

  • (If you order more than 2, all but 2 will be removed from your order)

• SD Card NOT included

• Make sure SD Card is formatted FAT32 (NOT exFAT)
  

Limited support for the original Atari 2600

More information here: https://www.16-32bit.eu/unocartplus 

What you are getting:

• Prepacked Unocart+ in a 3D printed case of chosen color with applied sticker
  (NO SD CARD or GAMES INCLUDED)

The micro SD card is easy to prepare. 
You have to format it in FAT32, and copy games onto it. See FAQ and links below for more information. 

The UNOCART+ is sold alone, assembled, with the latest firmware available. 

There is a new firmware available for the UNOCART+
https://www.16-32bit.eu/unocartplus#firmware

This is a early release for this project. 
Buying  this early version means you may encounter bugs. But you are also helping 16-32bit make this product better. Firmware is being improved and new versions will be available. Check https://www.16-32bit.eu/unocartplus  as needed. 

Supported ROMs 

If the original cartridge is not supported by the 2600+ or 7800+, then the game will not work via the UNOCART+

The following ROM should currently work:

• The classic 2Ko ROM
• The classic 4Ko ROM
• The classic 8Ko ROM
• The classic 16Ko ROM
• The classic 32Ko ROM
• 8Ko+RAM ROM
• 16Ko + RAM ROM

FAQ - Questions and Answers

Q: Why am I getting "Cannot Find SD error 13" in the display window?
A: This is most likely because the card you are using is not formatted FAT32. Try to use and SD card that is 32GB or smaller. Larger SD cards are usually fomatted exFAT and can cause this issue. Usually there aren't any restrictions with microSD sizes,  but very large SD tend to be exFAT. In rare cases, please make sure the SD card is inserted correctly. When the cart is placed in the 2600+ the SD card should be inserted showing the copper plates facing up.

Q: Can I use the UNOCART+ 2600 cartridge on an original Atari 2600?
A: Support for the original console is limited. 2K and 4K ROMs should function properly. Development is primarily focused on the 2600+ and 7800+ consoles.

Q: Why isn't there a menu on the TV like the other multi-carts for the 2600 ?
A: The other multicarts utilize a special ROM running on the Atari 2600 to display a menu and select games. This solution is not feasible with the 2600+ and 7800+.

Q: Can I emulate 7800 games?
A: No, only 2600 games can be emulated. 7800 ROMs will never work on the UNOCART+
The simple reason is because 7800 cartridges use a wider port with 8 extra pins. The UNOCART+ would not fit on the original 2600 with this wider connection, just as you cannot insert a 7800 cartridge into a 2600. 

Q: Can the UNOCART+ be purchased with a ready-to-play microSD full of games?
A: No, you must source your own microSD card and ROMs. Any microSD card should suffice; there is no need for a large capacity one. 4GB / 16GB cards, formatted FAT32, are more than adequate. Downloading ROMs from the internet is your responsibility and you assume all risks. 

Q: A ROM is emulated, but the 2600+ console does not recognize it or fails to launch it.
A: The Atari 2600+ and 7800+ cannot run all games, and the UNOCART+ may not support certain ROM formats. First, investigate and confirm that the game on the original cartridge functions on the 2600+. Also, ensure your UNOCART+ cartridge is using the latest firmware. If the game should work, use the contact form below to submit a request, specifying the game name, the firmware version of your console, and any details that may assist in debugging the issue.

Q: During the emulation, the OLED screen displays "Cartridge Type: X" with X being a number. What does it mean?
A: This number assists in identifying the type of ROM the game is utilizing. Please refer to the supported ROM table above.

Q: Is the firmware available somewhere. Can I download it and make a better version

A: The firmware is current not available. But it will be shared during 2026 and made free to download/edit. All we will ask is to not resell and share back with us what you did or what type of cartridge support you added.

Report Problems using this form here: https://www.16-32bit.eu/unocartplus