Is USB gecko legit

yes

the usb gecko has many features allowing you to do much more on the wii than you normally could

it connects from your PC to wii via usb cable

however

the usb gecko does allow you to copy (back up) your games
and also play them

but

the only way to do that is to have a mod chip (D2PRO)

and a custom DVD drive(LG8164D)


basically the mod chip sends info to the DVD drive which then the info goes to through the usb cable to your PC

then when you want to play the game you load it up on your PC and it imprints a tempory file onto your game disk you have in the wii and you can play the game


mod chips and custom DVD drives are illegal


so yes

the usb gecko is legal (without the modchips and DVD drives)