CycloDS is a company that provides blank cartridges for Nintendo DS and DS Lite SD. The cartridge is used to make e-books, games, mp3s, and movies playable. A SD card is also required. There are many benefits to using SD cards. A Nintendo DS only has so much storage before you run out of room. With SD cards, once you run out of room you can simply go out and buy a new one without losing any of your data. A normal MicroSD card can hold up to 2GB, while a MicroSDHC can hold up to 32GB.

CycloDS offers three different cartridges for the Nintendo DS and DS Lite: Evolution, MicroSD, and MiniSD. As the name states, MicroSD is for MicroSD cards and MiniSD is for MiniSD cards. MiniSD is like Evolution without some of the features. It can still play games, mp3s, movies, etc., but does not have some of the extra features that Evolution has.

Evolution is for MicroSD and MicroSDHC and comes with special features. It includes a built-in cheat system with over 300 games bundled with it. It also includes the ability to save your game at any time, not just at save points. There is a mode called SlowMotion that allows the game to be slowed down if the game is too hard. It is fast and can load software, like homebrew applications, in seconds. Evolution is designed to be easy to use. When you purchase from CycloDS, they include a computer application that allows easy transfer of material onto the blank cartridge. Evolution supports 8 different languages so it's not limited to English speakers only.

By owning one of the mentioned products from CycloDS it saves time and energy. Instead of switching out each game whenever you want to play something new, you can instead put all of your games onto the CycloDS cartridge and have them readily available at any time. Switching games is simple with the onscreen list and soft reset. Soft reset means you don't have to turn off your Nintendo DS. All you have to do is go to the menu and select "Return to Main Menu".