I've fried a couple things over the years plugging in the wrong power supply (always during a move/reno when multiple things were being replugged) so the abilit

I've fried a couple things over the years plugging in the wrong power supply (always during a move/reno when multiple things were being replugged) so the ability to have the device negotiate it's own voltage from a standard source that can be reused is a blessing. I still have a collection of random wall worts from the past just in case, but never seem to have the one I need when something dies.