This is a Visual Memory unit. I am selling it because I got rid of my Dreamcast. It was able to save data up to 3 months before I got rid of the Dreamcast. I no longer have the console, so I don't know if it still works as a memory card. All the buttons worked. There is a slight vinegar smell. Please understand that I don't know if it works as a memory card, and only purchase if you are okay with that.