NUS, or Nintendo User Accounts, are user profiles created on the Wii U console. Each NUS account is tied to a specific user and allows them to access various features, including:
Installing modified system titles onto a real Wii U can brick your console. Do not attempt this unless you have a NAND backup and a hardmod. wii u nus
How many NUS accounts could I create on the Wii U? A: The Wii U supported up to 12 user accounts. NUS, or Nintendo User Accounts, are user profiles
Several community-developed tools are used to interact with these files: or Nintendo User Accounts