Sega Saturn Fenrir Duo Optical Drive Emulator

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FCD-SAG034659 [EE-3]
Sega Saturn Fenrir Duo Optical Drive Emulator
Viking Child & Switchblade II

With the Fenrir Duo, you'll never use your old cd drive. Simply replace it with the Fenrir by removing the disk drive and plug both Fenrir cables. No soldering required.

You will be able to store all your games in the microSD, launch homebrews and games and load them faster from the menu.


  • Improved loading time with the SD card.
  • Support any microSD (and SDCard with an extender) of any size.
  • Easy to add games with the microSD.
  • Support .ccd/.iso/.bin and redump rips.
  • Support FAT32 and exFAT
  • Region free !
  • Support the Sega Saturn Movie Card !


The installation is very easy, there is no soldering to do, the kit is ready to use.

  • Fenrir Duo supports up to 2499 games per SD card.
  • IGR to return to the menu.
  • Press ABC + Start on your controller to return to the menu.

Grab the latest firmware here:

How do I know if I have a 20 or 21 pin Console?

20 pin drives are motherboard revisions VA0, VA0.5, VA0.8, VA1.
Please note some VA1 revisions come with a 21 pin drive instead of a 20 pin drive.
In order to find out if your console has a 20 pin drive without opening it, you can look for a screw at the back, next to the power supply socket.
If you see 3 screws, then it’s a 20 pin VA0. If not, then you need to check that the power and reset buttons are oval in shape and not round.
Another way to check, is to open the CD lid and look towards the back of the cd mechanism, to the gap on its right side.
If you see a white ribbon cable running towards the back, then you have a 20 pin drive.
If none of the above helps, then you most likely have a VA1 console and you need to open it to make sure your drive uses a 20 pin ribbon.


How to update the firmware

Updating your Fenrir Duo's board’s Firmware, is incredibly easy.Tools Required: 

  • A microSD card, FAT32 formatted
  • A computer (Windows, OS X or Linux) with a microSD or SD card slot with adapter
  • The latest Firmware Update.bin file, which you can download from here

1. Insert your microSD card to your computer’s card reader. The drive will show up on your Computer (Windows) or the Desktop (OS X).

2. Open it with Windows Explorer / Finder / File Browser.

3. Drag the “update.bin” file to your SD card.

4. Safely eject the card.

5. Make sure your Sega Saturn is turned off. Insert your microSD card to the Fenrir Duo microSD card slot.

6. Turn on your Sega Saturn. The animation won’t play. After a while, you will see the Saturn Bios screen.

7. Select “Start Application”. The firmware update is done!



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) 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.

31 Reviews

  • 5
    Fenrir Duo

    Posted by Christian on Sep 27th 2023

    The Fenrir is a great product and highly suggested for Saturn collectors. This is an easy to install solution to play countless Saturn games on actual hardware. Ends up being ridiculously cheaper than trying to buy physical copies of Saturn games these days. Only wish it included a mount with the Fenrir.

  • 5
    Super authentic

    Posted by Eduardo Pernia on Sep 4th 2023

    This is one of the articles at the Hardware level and at the Software level that teleports you to what is the extent of what is retro in the 90s, no this article takes you much more capable than you can imagine both, so you can see the covers, you can see the games This is an article that I give my 5 stars because of What is so doable the gameplay is so precise everything is as if it were just like the original even better in the The loading medium is something very authentic for the console and well, excellent work you guys.

  • 5
    Fenrir Duo

    Posted by Big Boss Entertainment on Aug 24th 2023

    Very easy install. I would recommend this to anyone just entering the Sega Saturn market. Every game I tested worked flawlessly. Great project

  • 5
    Great ODE

    Posted by MrJSA on Jul 18th 2023

    This is an excellent ODE. Now I have all my games on the Saturn. No exhausting disc changes anymore, no need to get up and an no hustle to go to the game cabinet to store away the games. And i don`t need to worry anymore about my optical drive burning out, or scratching my discs. Its a quality of life mod for me. Its an easy install and with a mounting bracket it looks great as well.

  • 5
    Sega Saturn Fenrir Duo Optical Drive Emulator

    Posted by Reviewer on Jul 12th 2023

    Installation was a breeze, and if anyone`s curious about what ribbon to use, the size will tell you everything you want to know when you`re plugging it in. This ODE works like a charm and it`s wonderful to have this option to play my backups. If you have a Saturn, this is a fantastic addition and highly recommended.

  • 5
    Excelente product and fast shipping

    Posted by Paul Salinas on Jul 3rd 2023

    Excellent product and fast shipping. I installed it easily and it works perfectly with a 128 gb micro sd memory. Thanks a lot

  • 5

    Posted by Royce on Jun 21st 2023

    Wonderful. Works perfectly. I`ve installed mine in 2 different Japanese Saturns. Very easy anyone could do it.

  • 5
    Absolutely amazing

    Posted by Josh on Jun 12th 2023

    Very simple to use and got me using my old saturn that the disk drive burnt out on!

  • 5
    Fenrir makes me want to Fen-cheer

    Posted by Blarbenheimer on May 18th 2023

    Ludicrously easy to install and use, works flawlessly on my 21-pin Saturn, I can`t say a single bad thing about it!