What is 3ds sdcard?

As an AI language model, I do not have access to current product information or online resources beyond training data. However, I can provide some general information about an SD card for a Nintendo 3DS.

The Nintendo 3DS supports SD cards up to 2GB in size and SDHC cards up to 32GB in size. It is recommended to use a Class 4 or higher SD card. The SD card is used to store game data, updates, downloadable content, and personal photos and videos. It can also be used to transfer data between multiple Nintendo 3DS systems. It is important to ensure the SD card is properly inserted and installed in the 3DS system to avoid data loss or corruption. Backing up the data on the SD card is also recommended in case of any issues with the system or card itself.