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This is what is called a "power pack". You can connect the pump station directly to the power pack. The socket at the back of the PCI Slot card is meant for use of 12 Volts outside the case. No 230 Volts high voltage converter is needed this way..
Here we see the NexXxoS Xtreme I radiator. This is the component that will make heat dissipate and with the help of the fan behind it that heat will be blown outside your PC.
The kit includes a very fine waterblock named the NexXxoS XP Light, which has been designed with a plexi top hat to diminish weight and therefore strain on the motherboard.
The bearing surface of the cooler is flat and polished. BTW, you'll notice a small plastic foil over the cooler. Obviously to prevent scratching. Do not forget to remove it during installation.