Are all these External Drive good for the WiiU or not?

[attaboy]

hentai_11 said:

TheDarkBender said:
You can use USB 3.0 devices/sticks, although when using a usb hard drive (not a stick) you need to have an AC adapter or a second usb cable to power the device, because the Wii U won't let you use a HDD that uses one usb cable for power and data.

That's not true. I use a 2,5'' USB 3.0 drive with just one normal cable (no Y-cable) and it works fine. The problem is that some USB-HDD-Makers use more power than allowed by the USB-Specification (energy efficient components are expensive ...). This is usually no problem, because the PC (which should be the main use for USB-HDDs) has no problem with giving more power. However the Wii U only gives you power according to the USB-Specification. One of the reasons for this is to prevent overheating.

So if you get a good HDD you won't need an external power supply or a Y-cable.

Good info.  I think some HDD's will work but Nintendo said to use ones with their own power supply just to avoid any potential problems.