The Best Compatible MicroSD Cards for the New Nintendo 3DS

The launch of the New Nintendo 3DS and New Nintendo 3DS XL brought several hardware enhancements, but also a significant change in storage media. Unlike previous models in the 3DS family which used standard SD cards, the “New” line of consoles required the smaller microSD card format. The console shipped with a 4GB microSD card pre-installed, but for players who favored digital purchases from the Nintendo eShop, a storage upgrade was practically a necessity.

The system officially supports microSDHC cards up to 32GB. After accounting for system files, which can occupy approximately 2GB of space, a 32GB card provides the user with around 30GB of usable storage. This capacity is essential for building a substantial library of downloadable games, applications, and other data without constantly managing free space.

Officially Compatible MicroSD Cards

At the time of the console’s release, Nintendo of Japan published a list of microSD cards that had been tested and confirmed for compatibility with the New Nintendo 3DS hardware. This ensured users could purchase a card with confidence, knowing it would perform reliably. The testing focused on specific models from SanDisk and Toshiba.

SanDisk: The most extensively tested brand was SanDisk, with three of its high-performance lines confirmed to work. These cards were known for their reliability and fast read/write speeds, which can help reduce loading times for digital games.

• SanDisk Extreme microSDHC: Both the 16GB and 32GB versions of this card were verified. This series offered a strong balance of performance and price, making the 32GB model a popular choice for users seeking the maximum supported storage.
• SanDisk Extreme PLUS microSDHC: The 16GB and 32GB capacities of the PLUS series were also confirmed as compatible. These cards typically offered slightly higher read speeds than the standard Extreme line.
• SanDisk Extreme PRO microSDHC: For users prioritizing performance above all else, the 16GB and 32GB PRO cards were also approved. These were among the fastest microSDHC cards available at the time.

Toshiba: Nintendo also tested and approved one card from Toshiba.

• Toshiba microSDHC: Only the 8GB version of this particular card was officially listed as compatible. While a viable option for a minor storage increase, it offered less capacity than the tested SanDisk models.

Before using a new card, Nintendo recommended formatting it for optimal performance and stability. The SD Association provides a free tool called SD Card Formatter for Windows and Mac that correctly formats memory cards according to official specifications. It is important to back up any existing data before formatting, as the process erases the card completely.

How to Install a New MicroSD Card

Upgrading the microSD card in a New Nintendo 3DS or New 3DS XL is more involved than on prior models. The card slot is located underneath the console’s back cover, requiring a tool to access it. Before beginning, the console must be powered off completely, not just in sleep mode.

1. Gather Your Tools: The process requires a #0 Philips head screwdriver. This specific size is crucial; using a larger or smaller screwdriver risks stripping the screws and damaging the console’s housing. These screwdrivers are commonly found in small electronics repair kits.

2. Remove the Back Cover: Place the console upside down on a soft, non-abrasive surface to protect the top screen. Locate the two screws on the back cover. Use the #0 screwdriver to loosen them completely. The screws are designed to remain attached to the cover, so they will not fall out once loosened. After the screws are disengaged, use the stylus to gently pry open the cover using the small notches on the side of the handheld.

3. Eject the Existing Card: With the cover removed, the microSD card slot is visible. The pre-installed 4GB card will be inside. To remove it, gently push the card further into the slot until it clicks. The spring-loaded mechanism will then push the card partially out, allowing it to be gripped and removed. Do not attempt to pull the card out without first pushing it in to release it.

4. Insert the New Card: Take the new, formatted microSD card and slide it into the slot with the label facing up. Push it in until it clicks into place and sits flush with the slot.

5. Replace the Back Cover: Align the back cover and press it down firmly until it snaps into place. Tighten the two screws with the screwdriver until they are snug. Do not overtighten them. Once the cover is secure, the hardware installation is complete.

Transferring Your Data

For users upgrading from the included 4GB card or moving data from an older 3DS model, transferring data to the new microSD card is a critical step. The most reliable method involves using a personal computer with an SD card reader.

First, copy the entire contents of the original microSD card to a folder on the computer’s desktop. It is essential to copy everything, including all the nested folders, to preserve game data, save files, and eShop licenses. Once the copy is complete, eject the old card and insert the new, larger microSD card. Copy the entire contents from the desktop folder onto the root of the new card. After the transfer finishes, the new card can be installed in the New Nintendo 3DS, and all previous digital content and saves will be available.

The New Nintendo 3DS XL was released in North America on February 13, 2015. Its launch coincided with major software releases like The Legend of Zelda: Majora’s Mask 3D and Monster Hunter 4 Ultimate, both of which were available digitally and highlighted the need for expanded storage.