The Kühler H2O 620 is a sealed liquid CPU cooling system from Antec. Let’s test it and check its performance.
The Kühler H2O 620 is actually manufactured by Asetek, which also makes watercoolers for Corsair- such as the H70; which we already reviewed. Even though the Kühler H2O 620 resembles the Corsair H50, they are not exactly the same product.
The product box is large and has no openings. See Figure 1.
Figure 2 illustrates what is inside the box: a premounted and sealed block-pump-hoses-radiator system, a 120 mm fan, manual, and installation hardware.
In Figure 3, you can see the Antec Kühler H2O 620.
This watercooler is discussed in detail in the following pages.