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.

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Figure 1: Package

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.

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Figure 2: Accessories

In Figure 3, you can see the Antec Kühler H₂O 620.

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Figure 3: The Kühler H₂O 620

This watercooler is discussed in detail in the following pages.