A new update for wafel_sd_usb , better known as SDUSB , has been released, the plugin allows us to use an SD partition as a USB memory expansion for the Wii U.

The SDUSB plugin works by creating a second partition formatted with the Wii U console’s native file system , ensuring excellent performance.

The partition is managed intuitively, appearing as a USB device easily accessible via the console’s data management. Additionally, the SDUSB is compatible with various homebrew software, such as SaveMii , WUP Installer , and HAI (for Wii VC titles).

The update focuses on improving the stability of the key replacement procedure, a critical operation to ensure proper reading and writing of data to the SD partition.

Prerequisites

A reliable SD card (we recommend using “Endurance” cards from well-known manufacturers).
A method for running homebrew (ISFShax or defuse recommended)

Configuration

1. Partitioning the SD card

Windows: Use a tool like Minitool Partition Wizard or EaseUS .
Linux: Using gparted .
Create two primary partitions:
- FAT32: For homebrew (existing or to be created).
- NTFS: For Wii U games (do not assign a drive letter).
Resize FAT32 partition and create NTFS partition.
Align partitions to 64 MiB boundaries and use a multiple of 64 MiB for the size.
NTFS is not the file system used by the Wii U, it is only used to tell SDUSB which partition to use.

2. Installing the plugin

Download the latest version of wafel_sd_usb.ipx.
Place the file in the folder ios_pluginson the SD card or in /sys/hax/ios_pluginssu slc(renaming it to sdusb.ipxfor slc).

Using SDUSB

Back up. The SDUSB partition will appear as a USB device.
Format the SDUSB partition.
Connect an existing USB storage device and copy its contents to the SDUSB partition.