Which would be perfect if it would let me pass from the Wii U to the pen drive which it isn't letting me. That would also not let me use my gamecube connector.
I also have 8GB Wii U and a 500GB external HDD behind it, where everything is stored/installed on... except the pre-installed WindWakeer HD
and external HDDs aren't that expensive (just make sure it has it's own power-supply and doesn't rely on the WiiU for power - I had only problems with that)