Handy dandy tip: Do not unmount your SD card too often if you use N3DS, as the screws might get a bit loose. You can either use MicroSD management settings in system settings, which connects your device to your (wifi) network and you'll be able to see it on your computer. Copy multiple cia files over so you don't have to keep switching. You can install as many as you want, as long is your SD card isn't full. You need to have at least twice the space for one cia. For example: You have cia file that is 1,5GB. You need to have at least 3GB of space to install that, because the cia file is stored on your SD card (1,5GB) and installs the same files on your emunand (another 1,5GB). I suggest using 32GB or 64GB cards in your 3DS. You can remove the .cia files once they're installed and you see them on your home menu. Also, FBI has a handy trick: you can install all cia's in a certain folder. You need to select the folder and press a button (don't recall exactly, but it'll tell you on screen) and it will go and do everything, so you don't have to manually select every one and wait for them to be ready to continue, FBI will continue when it's ready. This is especially handy when you have some big games, you can leave them for an hour and come back to see your big games installed