The kit comes with a double back plate to make the air exhaust hole nice and
neat. This takes up an extra expansion slot. It has a switch for high and low
speed. It'd be nice to have the speed thermally controlled, but usually I can
imagine it being at full speed all the time anyway. This way you can just use
it whenever you are gaming.
They also include this grounding plate since "without proper grounding
of the heatsink it can come in rare cases to system crashes". It goes
between the back plate and the headers on the card. I guess they've had issues
with static buildup between the heatsink and the board so this seems like a
fairly good solution. That text is about as bad as the German translations get,
in general the instruction sheet provided is very clear with good quality photos
and details instructions in both German and English.