Walmart is where I bought that one. Yeah, it's USB.
It should work then
If you like playing with it it will work
it is a little harder to play with a controller on mbcaster ir you want to use d-pad.
I can tell you how do do that if you need.
If you world rather play with ps2,xbox,or gc then the converter is the way to go.
I bought one and i got to of my friends to buy them, But you need to get a driver for the xbox and gc controllers,.
You must plug it in let XP install the hub, then plug in a PS2 if you have one of will use one. then install driver then attach gc and xbox controllers.