No, it's for any mouse with a middle button. Or if you happen to use both the touchpad and a mouse, like maybe on a Macbook, in which case you can actually set

No, it's for any mouse with a middle button. Or if you happen to use both the touchpad and a mouse, like maybe on a Macbook, in which case you can actually set the scrolling direction for trackpad and mouse separately - which is otherwise not possible, really annoying.