Antec Kühler H2O 620 v4

Published: January 24, 2013
Author: Ville Ilonen
Editor: Amber Lupala
Provider: Antec

Liquid coolers have become more and more popular these days. There are many manufacturers who sell service free liquid cooling systems and DIY setups are becoming obsolete. Today we will take a look at Antec’s newest water cooling setup called H2O 620 V4. Let’s see how well it performs.

About Antec:

Check Antec’s webpages at for information about the company.

Specifications & features:

CPU Socket Compatibility:
– Intel LGA 2011/ 1155 / 1156 / 1366
– AMD AM2/ AM3/ AM2+/ AM3+ / FM1
Low profile pump ensures exceptional liquid circulation while preserving internal airflow
Non-corrugated easy-bend tubes for maximum flexibility in radiator positioning
Intelligent noise / speed-control fan for quiet, efficient cooling
Latest generation copper cold plate for optimal conduction
Cooling Liquid – Safe, environmentally-friendly, anti-corrosive
Fan Speed: 1450 – 2000 RPM
Tubing Length: 13.0″ / 330 mm
Radiator Dimensions:
– 5.6″ (H) x 4.7″ (W) x 1.1″ (D) /
– 151 mm (H) x 120 mm (W) x 27 mm (D)
Fan Dimensions:
– 4.7″ x 1.0″ / 120 mm x 25 mm
Air Flow:
– 81.3 CFM
Cold Plate + Pump Height:
– 1.1″ / 27 mm
Net weight: 1.5 lbs / 0.7 kg
AQ3 – Antec Quality 3 year limited warranty on parts and labor

The Product:

Antec Kühler H2O 620 V4
Please click on the picture to open it in a new window

Antec Kühler H2O 620 V4 comes in a black cardboard box which has a picture of the product printed on top of it. Antec advertises the H2O series as having quick installation, but personally I might disagree. I’ve seen coolers with a lot easier installation procedures. However, let’s take a closer look.

Antec Kühler H2O 620 V4
Please click on the picture to open it in a new window

Inside the packet we have the cooler itself along with the needed accessories to install it. The Antec Kühler H2O 620 V4 supports a wide range of processor sockets including AM2/AM2+/AM3/AM3+ and Intel LGA1155/1156/1366 and 2011.

Antec Kühler H2O 620 V4
Please click on the picture to open it in a new window

Also, with the cooler there is a single 120mm fan provided. It is a basic Antec fan with a maximum fan speed of 2000rpm. The fan is meant to be installed in the pull configuration, but users may install it also in the push or two fans in push-pull configuration.

Antec Kühler H2O 620 V4
Please click on the picture to open it in a new window

Let’s take a look at the radiator. It is a single 120mm radiator with dimensions of roughly 150x120x27mm. It has about half the thickness of the H2O 920 which we have reviewed earlier. Other than that it is very similar in design.

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  • Speeddevil

    what is this cooler compared to? I would like to see it compared to the thermalright AXP 140 to be honest as I cannot find a cooler that looks comparable for htpc.

  • azbest

    is the pump loud or the fan or the air flowing through the radiator? which one is it?

  • danbund

    omfg worst review ever

  • Water cooling kit

    Nice sites! I am very glad to see the blog and the content you have posted is really amazing and fabulous. You have described about how do Water cooling kit work properly?

  • Esben Rasmussen

    Noise levels?
    Are the fans quiet or noisy?
    You must have had some more thoughts while testing it – could you elaborate a bit more on the acoustics?

    • Niko Lupala

      Well its hard to say since everyone hears noise different, noise levels are good at the lowest leven but on the other hand they can be loud at the highest RPM levels.