How to upgrade your Wii U storage by 1TB or more: That's enough
Just a reminder: some or many USB drives is WII U won't work without Y-cable (getting power from two usb ports of Wii-U) : r/WiiUHacks
UGREEN UGREEN USB 3.0 cable Y-shaped Micro USB 3.0 cable With USB2.0 power auxiliary cable Type A male x 2 Micro type B male Samsung Galaxy S5 Lumia2520 Samsung Galaxy Note Pro
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How to upgrade your Wii U storage by 1TB or more: That's enough
Wii U External Storage: What Works, What Doesn't, and Proposed Solutions - blog.johnpray
外付けUSB HDDにWiiUゲームをインストール | 玄人向けの 3DS改造
Nintendo Support: How to Copy or Move Data between Two External Storage Devices
Wii U External Storage: What Works, What Doesn't, and Proposed Solutions - blog.johnpray