So I just put this in the brackets like optical drives? Is it better to get a 3.0 to 2.0 adapter to use the 2.0 that come with the case, i cant remove them
That set seems to have both options, either a front mount (in a floppy bay) or a bracket in an I/O slot on the back.
I think the USB3.0 bracket is better, since you get both USB2.0 and USB3.0. With the adapter you just get USB2.0 on the front panel.