Amazon.com: 16GB SD SDHC Flash Memory Card FOR NINTENDO 3DS N3DS DS DSI & Wii Media Kit. Also compatible with Nikon SLR Coolpix Digital Camera, Kodak Easyshare, Canon Powershot, Canon EOS :
Amazon.com: Skinit Decal Gaming Skin Compatible with 3DS XL 2015 - Officially Licensed Warner Bros Flash Block Pattern Design : Video Games
A note about flashcarts for playing 3DS games on a 3DS. : r/flashcarts
ntrboot - 3DS Hacks Guide
R4 3DS™ « Nintendo R4 3DS Flash Card
Sandisk 16GB SD SDHC Flash Memory Card works with NINTENDO 3DS N3DS DS DSI & Wii
3DS and NEW 3DS EZ-FLASH Redux EZR 3D Game Flashcart
Nintendo can remotely brick your 3DS after flash card use? | Engadget
Amazon.com: Sandisk 32GB SD SDHC Flash Memory Card for Nintendo 3DS N3DS DS DSI & Wii Media Kit, Nikon SLR Coolpix Camera, Kodak Easyshare, Canon Powershot, Canon EOS, Comes with Bonus SD/TF
New R4I SDHC Dual Core Gold Pro Flash Card Adapter for DS DSI 2DS 3DS New3DS & All DS Consoles - Newegg.com
For Dsone Game Flashcard NDS NDSL 3DS R4 Flash Card Memory Reader Burn Adapter | eBay
Micro SD Card Memory tf flash 32GB For NINTENDO 2DS,3DS,3DS XL,Wii U Console | eBay