do not compare the wii to the wii U. the wii u is sorely lacking in power for the USB portsthis flash drive worked on a wii classic
your syscheck report is correct.
Strongly Recommend ==> use a FAT32 external hard drive and everything will be fine.
read the messages on the forum, people who use a USB key, they very often have black screens or never start, so they end up with an external hard drive with a Y-block and all that ends well






