Nintendo officially only supports memory cards up to 32GB -- no matter whether you're using SD or microSD cards and which 3DS iteration you own.

Backing up the old SD card data If you're upgrading from an older 3DS (or just moving to a bigger SD card), you're going to need to back up the data from your old SD card.

Homebrew Applications It may have been designed as a tiny and single-purpose device, but the Nintendo DS has a surprisingly diverse homebrew community.

The ninjhax exploit requires a 3DS, SD card, and a copy of Cubic Ninja. Rather than make users wait until Saturday to launch the 3DS homebrew exploit, amateur coder smea decided to surprise us and ...

While there's already a number of homebrew solutions that accomplish the same thing, Nintendo is finally seeing its way to providing an official tool that ...

If you have completely legal homebrew games that you want to play on your Nintendo DS, then you might want to check out the M3 DS Simply Complete 1GB Kit.

The exploit is described as being similar to one that helped bring homebrew software to the Wii, and requires an internet connection, an SD card and a copy of Cubic Ninja to run.

Tim Schuerewegen released the driver and application necessary to allow anyone with a Nintendo DS, a GBA flash cart, and a supported wireless network card to load any homebrew demo/app on their DS.