Amazon.com: Sandisk 16GB SD SDHC Flash Memory Card works with NINTENDO 3DS DS DSI & Wii Media Kit, Nikon SLR Coolpix Camera, Kodak Easyshare, Canon Powershot, Canon EOS, comes with Everything But
How To Upgrade 3DS Storage: MicroSD Transfer, Compatibility And More | GameLuster
Is this SD card compatible with the 3DS XL? : r/3DS