The Nintendo DS and Nintendo DSi are two of the most popular and successful game consoles available today. Both systems feature thousands of games and other applications. One of the nicer accessories available for the Nintendo DS and Nintendo DSi are the SLOT-1 flash card storage devices. These fit right into the normal game slots and do not require an external power source. SLOT-1 flash card storage devices are created specifically to work with Nintendo DS or DSi hardware. These devices use an external flash card memory system to store your applications. Homebrew software engineers who create games and other applications for Nintendo DS and DSi use these storage devices as development platforms to run, test and debug software. With the availability of large capacity memory cards at 32 GB, the SLOT-1 flash cards are also used to store movies and music. The most popular use of these storage devices is to make backup copies of games and game saves. The R4 DS, DSTT, Acekard 2i, Supercard and CycloDS are some of the most popular storage devices available.

The R4DS, DSTT, Acekard 2i and CycloDS flash cards each have their own individual merits and fan clubs. All basically use the same type of storage technology (though AceKard 2i is designed specifically for the Nintendo DSi). The main differences are mostly found in the software. For example, some of these flash card storage devices have the code to support Nintendo rumble packs or play movies. The ones that do not will usually have a software update on the company website that upgrades the unit to support these functions. Many homebrew Nintendo DS and DSi developers make all sorts upgrades you can use to make your experience more customizable.

Each of these flash cards will enable you to play and copy games. Some require specific software to play music and movies but all are WiFi enabled and support multiplayer gaming capabilities. Cheat code editors are also supported on all brands of flash card and all utilize the touch screen interface.

The R4 DS, DSTT, Acekard 2i and CycloDS flash cards are incredibly useful to the owners of Nintendo DS and DSi game consoles. Not only can you keep all of your games and applications on one card, but you can easily back up any important data and keep a copy on your computer. The convenience of having all your games, applications, movies and music on one card takes the Nintendo experience to the next level.