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Review: Antec KÜHLER H₂O 620

Review: Antec KÜHLER H₂O 620

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We continue with our quest to explore alternative options to traditional air cooling and to do so today we have the Antec KÜHLER H₂O 620 in the lab.

The Antec KÜHLER H₂O 620 is the little brother of the Antec KÜHLER H₂O 920 and has been specifically designed for Antec by Asetek. We can see a head unit similar to the one used on the 570LC and a radiator similar to the one used on the 550LC or 510LC.

The Antec KÜHLER H₂O 620 is outfitted with a single 120mm fan. We also note a thinner radiator in comparison to the 920. The KÜHLER H₂O 620 is clearly geared to the more budget conscious user and we will explore if the budget cut will hurt performance and if performance continues to make this cooler a viable option and competitor.

Antec KÜHLER H₂O 620 - Profile

The Antec KÜHLER H₂O 620 is not as feature rich as it's big brother and does not include management software. Which make this a little bit of a simpler option.

About Antec

Antec, Inc. is the global leader in high-performance computer components and accessories for the gaming, PC upgrade and Do-It-Yourself markets. Founded in 1986, Antec is recognized as a pioneer in the industry and has maintained its position as a worldwide market leader and international provider of quiet, efficient and innovative products. Antec has also achieved great success in the distribution channel, meeting the demands of quality-conscious system builders, VARs and integrators.

What Antec has to say about the Antec KÜHLER H₂O 620

The Antec KÜHLER H₂O 620 delivers high-performance liquid cooling for your CPU in a quick, easy-to-install package. Unlike traditional liquid cooling systems, this self-contained unit comes prefilled and requires no maintenance. The voltage-controlled 120 mm fan and 3rd generation copper coldplate ensure efficient cooling, while the estimated 50,000 hour pump lifetime means this cooler is even likely to outlast the system it cools. Lastly, easy-bend flexible tubing allows the KÜHLER H₂O 620 to be installed in nearly any orientation. Take your PC's Quiet Computing™ to the next level with liquid cooling performance at a price that rivals aftermarket air coolers.


  • Zero maintenance
  • Non-corrugated easy-bend tubes for maximum flexibility in radiator positioning
  • Pulse Width Modulation (PWM) radiator fan
  • Cooling Liquid - Safe, environmentally-friendly, anti-corrosive
  • Copper Micro-Channel cold plate
  • 25,000 hours (MTTF)
  • LGA 2011 compatible

Supported Sockets:

  • Intel
  • 775 / 1156 / 1155 / 1366/ 2011
  • AMD
  • AM2 / AM2+ / AM3 / AM3+
created by
Edward 'BoT' Reese