FXPAK Pro (Classic)

Formerly: SD2SNES Pro (?)
PCB Version: Mk. III Rev. B
(16 reviews) Write a Review
FXPAK Pro (Classic)


Light Pipes


The "SD2SNES Pro" was re-branded to "FXPAK Pro" due to a trademark conflict. The FXPAK Pro still is the same great product, just with a new name!

This is the Base version of the FXPAK Pro for All Regions of the Super Famicom and SNES (it will fit into Japanese, European & North American systems). This cartridge comes assembled in a gray shell, red anodized screws and a Classic-style label.

Ever dream of having your whole library of SNES or SFC games in a single cartridge? The FXPAK Pro allows you to load your game back-ups (commonly known as ROMs) on a microSD card, put the microSD card into the FXPAK Pro, put the FXPAK Pro into a SNES or Super Famicom and have your list of games at your finger tips. Please read the FLASH CART DISCLAIMER below before purchasing.

Basic Edition vs. Deluxe Edition

The Basic Edition comes with just the FXPAK Pro cartridge with a gray back label in the selected style or configuration covered by a 1-year Warranty. Whereas the Deluxe Edition includes the cartridge with gold back label, a case, printed manual, an FXPAK Pro sticker, Stone Age Gamer sticker, and is covered by a 2-year Warranty.


  • FREE DIGITAL GAME: Blow 'em Out
  • microSD supported (tested up to 64GB; no exFAT support so SDXC cards must be reformatted using FAT32).
  • Fast ROM loading (~9MB/s).
  • Fast menu navigation.
  • Directories are sorted automatically, no need for FAT sorting tools.
  • High resolution menu (512×224) for adequate display of long file names.
  • Real Time Clock.
  • Supports ROM size up to 128MBit (96Mbit actually implemented).
  • Automatic near-time SRAM saving to SD Card (while the game runs). Some limitations apply:
    • near-time saving is switched to periodic saving when a game is found to use the SRAM as work RAM.
    • Automatic saving is disabled when MSU1 is used. SRAM is saved on reset.
    • Enhancement chip support (see below for implementation status).
  • SuperCIC key (SNES CIC clone):
    • enables operation on unmodified consoles of all regions.
    • supports software 50/60Hz switching on SuperCIC enhanced consoles only (to be performed by FXPAK firmware, not yet implemented there).
    • Auto region patching: eliminates “This Game Pak is not designed…” messages regardless of 50/60Hz setting.

Supported Enhancement Chips

  • BS-X memory map / Satellaview base unit registers (clock)
  • DSP1 / 1b
  • DSP2
  • DSP3
  • DSP4
  • ST-010
  • OBC-1
  • Cx4
  • MSU-1
  • S-RTC
  • SuperFX
  • SA1
  • S-DD1

Super EverDrive X5 vs. Super EverDrive X6 vs. FXPAK Pro:

*microSD cards larger than 32GB require special formatting tools.


A) PIRACY – Stone Age Gamer Retroworks, Inc. ("Stone Age Gamer") does not support or condone piracy. Flash carts and similar devices Stone Age Gamer sells and supports are intended to be used only for the following purposes: development, playing games licensed by Stone Age Gamer for use with the product, and/or playing currently owned personally backed-up games and media where it is legal to do so. Stone Age Gamer does not offer support for any other use of this product.

B) PERSONAL BACK-UPS – In many territories it is legal to make back-ups for personal use and/or archival purposes, however it may not be legal in all territories. Please learn the national and local laws regarding this subject before making back-ups for personal use. Please note, in most territories "Personal Back-up" means exactly that; back-ups you made yourself of games you currently own. This often does not include back-ups obtained via other methods (i.e. downloading), even if it is a game you physically own.

C) DAMAGE – Neither Stone Age Gamer or the manufacturer is responsible for any damage of property this product may cause. This is a new product intended to be used on electronic hardware that exceeds two decades in age and Stone Age Gamer can’t guarantee the condition of such hardware. USE AT YOUR OWN RISK.

D) MODIFICATION & USE – Any unauthorized modification and/or non-intended use of this or any other flash cart product sold by Stone Age Gamer shall void both manufacturer and retailer warranties of that product.

E) CLONE / MODIFIED CONSOLES – Flash carts were developed and intended to be used on un-modified original hardware using original hardware accessories. Stone Age Gamer does not guarantee flash cart operation on clone consoles or modified consoles. Flash carts may operate on some clone consoles or modified consoles. However, due to power consumption changes, random hardware changes and/or firmware updates of those consoles we cannot offer a guarantee of flash cart compatibility. Any returns due to incompatibility with clone consoles or modified consoles will result in no refund of any shipping costs and a 10% restocking fee if no defect is found during testing.

16 Reviews

  • 5

    Posted by Robert Janes on Jan 26th 2023

    I absolutely love the FXPAK. I use it mainly for running Super Metroid randomizers and it is perfect for running them on the actual hardware. I also use it for other games and it runs everything I have thrown at it. Great looking product, shipped fast, and absolutely worth having. Much cheaper than trying to buy actual SNES carts. Incredible value, incredible product.

  • 5
    The Best SNES Addon To Buy

    Posted by Marcus on Jul 5th 2022

    I finally got my hands on this amazing piece of hardware. The compatibility list alone is worth the price of admission! It was also a snap to set up, install the matching background, and place my rom backups onto an SD card. It just works! There are a few options to set to like in-game hooking to allow exiting back to the FxPak Pro menu from a controller code, date/time, and even making some Fx chip games run slightly higher framerates! It was a pretty penny to buy, however seeing as some single game carts can be much more this was a great way to preserve my collection and reduce wear and tear on my consoles. Side note, the Deluxe content is also worth it, trust me, StoneAge knocked it out of the park again! Also shout out to Krikzz, wouldn't have this amazing product with him and his team.

  • 5

    Posted by LemonMeringueTy on Mar 5th 2022

    Works flawlessly with every game I've thrown at it with my Analogue Super Nt.

    If you play SNES games, you NEED this.

  • 5
    Fantastic cartridge

    Posted by Robert M. on Dec 9th 2021

    This thing is awesome. Super simple setup, just add what you want to the SD card. Runs everything on my SNES flawlessly. Highly recommended!

  • 5

    Posted by christopher on Nov 11th 2021

    This is by far the best solution for playing ROM-hacks on the original Hardware. The firmware development ist still active and more functions are getting added. Definitely worth the price.

  • 5
    Great little cart, if power hungry for original SNES

    Posted by Will on Oct 7th 2021

    This cart is so much fun to use. It can handle almost any ROM you throw at it, even intensive, advanced-chip games such as Starfox and Yoshi’s Island. While I’ve already played most of these games, I’ve really enjoyed being able to run hacks and homebrews on my SNES without any issues; games like the Super Metroid/Link to the Past randomizer are much more fun to run through on original hardware.

    I have two small gripes with it. First is the cartridge shell design, which makes for a much tighter fit in my early SNES than any other cart. There’s very little give; my console’s power-slider lock seems to move forward *just* far enough to turn the console on. Speaking of power, my other issue with the cart is how much power it draws. If your power supply is unreliable (whether due to the cheapness typical of many third-party supplies or, as in my case, a failing original SNES power adapter), the image your FXPak provides may be unstable and appear glitchy. Replacing my power supply with a modern, well-regulated one fixed all issues I had, but it’s something to be aware of if you’re already noticing issues with other, less power-hungry SNES carts.

    Overall, though, I’m very happy with this device. It’s quick to load, has the most extensive capabilities of any cart of its type, and looks to continue to receive great updates adding even more features. While certain older SNES models might have issues with this cart, I wouldn’t hesitate to recommend it to anyone else.

  • 5
    Works perfectly

    Posted by BJS on Sep 1st 2021

    So far seems to work exactly as advertised; the Pro version handles SDD-1 games (with fan translation patches) such as Star Ocean without issue. Loading games onto the SD card is trivial with any USB SD reader.

    No more worrying about whether gamesave batteries have gone bad, no more worrying about further wear on ageing original cartridges, and no more feeling bad about wasting shelf space with a bunch of cartridges that should ideally be stored for safekeeping (and in cases of rare carts like Earthbound, out of sight): this is an absolute no-brainer if you're a retro SNES gamer.

  • 5
    All in one beast

    Posted by Kaeser on Aug 7th 2021

    It took a while to take the plunge, but I'm so happy to finally have my FXPAK Pro. Having MSU-1, SA-1 support (including fastrom hacks) and SGB, this is well worth the price of admission. The best flashcart on any platform, period.

  • 5

    Posted by JSP on Aug 7th 2021

    After doing a lot of research, including reddit and watching videos, the FXPAK PRO (frmly SD2SNES) was the best and most popular solution for Collectors like me. It's the most upgraded cart with the bells and whistles. I was really happy and impressed with the quality and UI with its many settings. If you want to save your original cartridges, this is the best alternative to play all games in one cartridge! There are only (2) point that prevent me from giving it 5-stars. [1] USER INTERFACE: I wish it had a more GUI feel. Such as allowing game metadata (i.e. release year, description, players, etc) and art work (i.e. box art/title screen/game art). This would provide a full immersive experience allowing you to see a preview of all the games. [2] HARDWARE: The microSD card slot cutout on the shell is slightly bigger than the actual slot. I've already slipped my microSD card into the cartridge shell rather than the slot several times. I had to open the shell in order to get the microSD card. Not a major issue, but an annoying one if you are not careful. Perhaps it's specifically my cart shell andor the board, where others don't have this issue? Regardless of those (2) points, I highly recommend this for any Collector/Enthusiast. Thanks!