Can you hack your wii u with other external storages, like hdd because i have one hdd all redy and don't want go buy a new sd card, so can i hack my wii u with hdd. And also i saw in the nintendos own website or something that wii u doesent support sd cards with uhs speed thing but i can't find any sd cards that don't atleast have uhs 1 so if i have to get a sd card does it matter if it has uhs 1. And if i need to hack with sd card do i need an external sd card reader or can i use the build in sd card reader that is in wii u.