I have 128 GB in my SD card slot and 64 GB in an Ace3DS+ card.
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For most of my time with my 3DS, I used a 4GB SD card, which I suspect came with the system itself. I almost never got non-demo games on the 3DS digitally, and most of the games I played weren't too abundant in the updates, so it was enough for my purposes, even if I was skirting at the edge of how much it could store. When I modded my 3DS shortly after hearing about the 11.17.0 firmware update, I figured I'd need an upgrade before modding it, so I went with a 32GB microSD card that was lying around in my house's storage tub, waiting to be used.
I run on 128 GB :)
I have a 256GB one. People say not to go above 128GB, but I just had this one lying around and honestly I've had no issues whatsoever.
Also I think there's a max of 300 games you can have installed at once.
You could technically get around that 300 game limit by having emuNANDs on your SD card — but 300 games is an absurd amount anyway, lol.
It's a max of 300 games that can be displayed on the home screen. You can install more but then you'd need to use FBI to see all the 3DS titles or twilight menu++ for DS/GBA titles.
TIL. Thanks!
I wanna have a 256 gig card just laying around.
For the low low price of about twenty quid, you too can buy a 256GB micro SD card and then forget to actually use it for something!
I use 128gb Samsung and I think it's the ideal size for 3DS. For my switch I use 256gb because the games are a lot bigger.
64 GBs, and it is far for being full lol.
Mine have 256 gb sandisk.The partition its fat32 and have so many 3ds games.32 gb for all ds games using twilight menu.
I've got a 128GB in my 3DS and a 32GB in an Acekard2i that's shared between the 3DS & DSLite.
I don't need either of those cards to be as big as they are, lol. Those cards had just happened to be big enough to fit my roms & not otherwise used in anything, so they're what I used.
I imagine an avid user could still easily get by with just a 32-64GB 3DS SD, and a 4-8GB SD for a NDS flashcard.
Edit: Oh, and my GBA flashcart's SD size is still somehow absurd for the amount of roms it has on it, while still only being 4GB in size.
My New 3DS XL systems each have a 256 GB SD card.
My old 3DS XL systems each have a 128 GB SD.
64 GB. It already takes a long time to power on, I probably won't put in a bigger card.
If you’re willing to take the time to copy everything off the card, reformat it, and copy back, you can reformat it to use 64k blocks and it should boot faster.
That made a big difference on my 128GB card and also fixed an odd bug I was having with GBA VC injects (top few lines of pixels were transposed to the bottom of the screen).
I'm at around 35/64GB used with about 20 3DS games and 40 DS games + misc so that should give you an idea. It's plenty but MicroSD prices are super cheap these days. I don't think you need to upgrade unless you plan to have a lot more than that.
128 GB… and it’s mostly full, I think I’m using between 105 and 110 GB.