You may not see WaterCool.de mentioned frequently in reviews unless you are deeply into watercooling.  They have been producing impressive products for quite a while now and the HEATKILLER IV Pro is no exception.  [H]ard|OCP's tests showed it to be equal in performance to the best they have seen.  If you don't like the clear look of the cooler [H] reviewed the waterblock also comes in copper and copper with nickel plating as well.  See the cooler in action here.

"WaterCool.de does not mess around when it comes to water cooling enthusiasts computers for well over a decade now. Many of us have been waiting with bated breath for Watercool's entry into the Threadripper cooling market, and it finally is with the HEATKILLER IV Pro. We compare it to five other water blocks."

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