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Antec KÜHLER H₂O 620 all included liquid cpu cooler.

A closer look


Front of retail packaging


Back of packaging

Very similar to other coolers in terms of retail packaging. Nothing to flashy and just enough information that someone who saw this in a big box retail outlet would be able to make decision about buying it.


right side of packaging


left side of packaging

The sides of the packaging continues the same design as the front with some statistics regarding how the Antec Kuhler compares to 1st gen liquid cooling and the stock Intel cooler. On the right image we have a shot of the specs of the Antec Kuhler, I will be going into further detail later on that.


Socket compatibility Intel LGA 775, 1155, /1156, 1366, AMD AM2, AM3 AM2+, AM3+
Fan 1450- 2000 rpms – (4.7″ x 1.0″ /120mm (w) x 27 mm (D)
Radiator dimension 151 mm x 120 mm x 27 mm
Cooling liquid Safe, environmentally-friendly, anti-corrosive
Cold plate + pump height
1.1″ /27MM
Weight 1.5 lbs / 0.7kg
Air flow
81.3 CFM
Tube length
13.0″ / 330 mm
kuhler620-016 The entire unit comes pre-packaged within a nice protective layering of cardboard.
Once the unit is removed from its protective housing  you can see that the tubing connecting the water block to the radiator is actually really flexible. This is is unusual for a self contained liquid cooling unit which usually comes with rigid tubing that can make it a pain to install in most cases. The water block has a plastic covering over it to protect the pre-applied thermal grease.

The radiator is large enough to fit a standard 120mm fan slot. The installation is a little interesting because if you follow the instructions you will find it hanging there while you get the rest of the block ready to be installed. The screws to secure the radiator pass through it and actually screw into the fan that is suppose to push air over the radiator. This design proves to firmly secure the entire setup to most cases but could potentially cause issues with thicker  or oddly designed cases.

kuhler620-022 The entire package contents. The Antec Kuhler 620 comes with fittings for both Intel and AMD, a single 120mm fan which per the instructions is designed to push air over the radiator. In some of the new and or more expensive self contained sets the biggest inclusion is a second fan.

While flexible tubing is a huge plus when it comes to installing this cooler, there is the concern that the flexible tubing lends itself to weakness that may end up destroying valuable components. I can tell you from careful inspection of all the seals that the tubing is very firmly connected. To further ease concerns Antec has graciously given a 3 year warranty covering  full parts and labor on the Kuhler 620. This warranty covers 3 years which is about the average lifespan for a CPU cooler.

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