nintendo 3ds xl sd card slot
SD card - Wikipedia
For Nintendo 3DS, Nintendo 3DS XL, and Nintendo 2DS, the game card slot is located on the back of the system.
Next, how big is the SD card you're using in the source ...
If you're low on space, you can replace the SD Card that came with your 2DS, 3DS, 3DS XL, New 3DS or New 3DS XL with another.
Solved! - My sd card is write protected and it is not locked | Tom's Guide Forum
my nintendo 3ds says write-protection is enable on my sd card and it is not locked. i cant download anything from my nintendo e-shop. what do i do