I bought it from www.shop01media.com and they have outdated information. http://www.shop01media.com/en/Nintendo-DS-DSi-3DS-Ace-3ds-plus-flash-cart-pink "Work perfectly on 3DS V4.4.0-10 and DSi V1.4.5E on AOS v2.10 and newer. 3DS firmware up to 7.x" The latest 3DS version is 11.2.0-35, and my New 3DS XL is on it. I had the intention of testing the card but I'm not sure whether to try or not because I'm worried that if the card hasn't been updated to work on the latest 3DS version, it will break. Is this the case? I did try contacting customer support for the Ace3DS card using the email on their website but twice my email was rejected saying there's no such user, so I decided to ask on the next best place being here. But, even if it hasn't been updated, it doesn't matter. I bought the card as a Christmas present for a friend and she has an old DS and DSi so it should work on those 2 at least... I think. I would appreciate it if someone could verify for me if the card works. For anyone who's curious, the reason I ordered from there was because it was the only store that I thought was reliable and safe. Every other store I searched gave me the result "China" and other places than where they say they are. I also wanted to pay via Visa Debit, because that's the only payment method I have. Then there's delivery time, I didn't want to risk waiting 20-50 days from China or something when I plan to give it as a Christmas present. And finally, I saw nothing but negative reviews for other sites.