and generally not recommended. A NAND backup contains the unique system software and keys specific to an individual console. ⚠️ Why You Shouldn't Download Random NAND Files Console Bricking
: Once finished, you will have a nand.bin and keys.bin file on your SD card. Move these to a safe place like your computer or cloud storage immediately. For Emulation Wii Nand Backup Files Download
Select the first icon, which shows a green arrow pointing from the chip to the SD card (NAND Backup). and generally not recommended
Instead of downloading files, you should create a personal backup using BootMii. Backing up your NAND - ConsoleMods Wiki Wii Nand Backup Files Download