Amazon.com: 32GB SanDisk Ultra UHS-I Class 10 80mb/s MicroSDXC Memory Card works with NEW Nintendo 3DS XL Video Game with Everything But Stromboli Memory Card Reader : Electronics
How to Find the SD Card on New Nintendo 3DS Systems - YouTube
Schrittweise Anleitung für den Datentransfer zwischen Systemen | Systeme der New Nintendo 3DS-Familie | Support | Nintendo
Why does Nintendo want to hide the micro SD card slot on new 3ds xl unless if you have a size 0 Philips screw driver to remove the back plate : r/3DS
Upgrade Storage for the New Nintendo 3DS XL 2015 - iFixit Repair Guide