CPU Water Block
The water block is made of copper, measures 58 x 58 x 25mm and weighs 336g. Its internal structure is unknown, because we couldn’t take it apart: its top part is soldered to the bottom.
There is a universal retention plate on top of the CPU water block. The internal diameter of the fittings also covered with rubber caps is 9.5mm:
The base finish is of remarkable quality. The surface is ideally even and impresses with impeccable mirror-shine:
Liquid Flow Control Module
The last part of Thermaltake PW 850i ProWater liquid-cooling system is the so-called flow control module (Flow TX). It is actually a piece of clear plastic tubing with a fan inside:
It allows to visually determine if the liquid is moving inside the system pipes or not. In my humble opinion, it is not a very useful device, because it simply creates additional resistance to the liquid flow.