Ultra CD Backup RAM Cart (Sega CD/Mega CD)

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Ultra CD Backup RAM Cart (Sega CD/Mega CD)

This RAM Cart has a whopping 8189 blocks of memory. This is 4 times the save space allotted by the original Sega Backup RAM Cart and is 65 times the Sega CD internal memory. The Ultra CD Backup RAM Cart contains one low-power CMOS 512K x 8 Static RAM powered by a 3V lithium battery. Comes with a BitBox case with insert..


  • 8189 Blocks of Memory
  • Easily replaceable internal battery (should last about 13 years)
  • Region free
  • Works on:
    • Genesis Model 1 w/Sega CD Model 1 or Model 2
    • Genesis Model 2 w/Sega CD Model 1 or Model 2
    • Mega-drive Model 1 w/Mega CD Model 1 or Model 2
    • Mega-drive Model 2 w/Mega CD Model 1 or Model 2
    • Sega CDX / Multi-mega
    • X'eye / WonderMega
  • Side notch for Japanese Mega-drive Model 1 support
  • PCB designed and assembled in Canada, cartridge assembled in U.S.A.

Includes memory cartridge only. Does not include video game system.

6 Reviews Hide Reviews Show Reviews

  • 5
    Ultra CD Backup

    Posted by Zach on Dec 22nd 2018

    Awesome! Stone Age Gamer goes above and beyond. Ordered the Ultra CD Backup and received it within five days. I have a Sega CD model 2 with 32x and it works perfectly. Finally, I can save my games with confidence. The cart and box is great quality and the quotes on the Stone Age Gamer packing tape made my day. Will definitely be ordering more. Thanks!

  • 5
    Review from Chris Hall

    Posted by Chris Hall on May 25th 2016

    Got mine in less than 7 days i live in canada that's fast as shit it works great:)
    a must for sega fans

  • 5
    Review from Ian

    Posted by Ian on Feb 25th 2016

    Once again Stone Age Gamer has come through with an awesome product. Second time placing order from them. This Ultra CD Backup is working perfectly on my model 1 genesis non HD ,(with the good sound chip) with model 1 Sega CD, and 32x. Now finally Shining Force CD is open to the full menu options, and able to access bonus levels (books) of the game having appropriate save storage!!! Just what I needed. Now I will have of storage as for playing other games as well.

    Very nice cart, fits well. I really love the label they created for this cart as well!

  • 5
    Review from Andrew

    Posted by Andrew on Apr 3rd 2015

    Works wonderfully and is a well made cart. And contrary to the description, it does in fact work with the 32X attached, as does the official Backup RAM cart.

  • 5
    Review from Joseph Levesque

    Posted by Joseph Levesque on Jan 28th 2014

    I just recieved mine and went to start Shining Force CD, It works great with my CDX/32X combo. I had been eyeing an original backup cart for years and even considered seeing if a japanese import would work to save on cost.
    Luckily db Electronics came along with a bigger cart at a great price. Thanks Stone Age Gamer...

  • 5
    Review from Mark Woods

    Posted by Mark Woods on Jan 2nd 2014

    I got mine surprisingly early - December 31st! First, let me say, it works AMAZINGLY. I copied saves over to it and it works absolutely as intended. Being able to play more than essentially only one game at a time on the SCD is a thing of the past for me.
    One note - If you are using a 32X in conjunction with this item, it will not work. This is not due to defect of the product but due to a memory address conflict that Sega had not planned for. Simply disconnect your 32X and play as normal and it will work flawlessly!