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Antec > 
Item#: N82E16835209078

Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

  • 6.3" (H) x 4.7" (W) x 1.0" (D)
  • RGB LED
  • powerful PWM fan
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Learn more about the Antec KUHLER H2O 650

Quick Info

Warranty

  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years


Customer Reviews of the Antec KUHLER H2O 650

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Showing 51 of 51 reviews - Clear Filters

  • Kyle E.
  • 4/7/2015 9:17:13 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsUnbelievably loud

This review is from: Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

Pros: Decent temperatures. 30-40 degrees idle and the highest temperature I have seen is somewhere around 55 degrees under load. The LED is cool, although I wish we had control over the color.

Cons: Incredibly loud. I can clearly hear the fan spinning even at idle when my PC is not in use. When it gets warm and the rpm increases, I am able to hear it in my room through a closed door. The integrated fan design is another flaw in design. I am unable to use any quieter fans because the Antec fan is permanently attached to it.

Other Thoughts: I would not recommend purchasing this product. The only reason I bought it was because it was 35 dollars total after rebates. Looking back, It would be a much wiser decision to spend a bit more and get something much quieter, along with better performance.

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  • Katie M.
  • 4/2/2015 10:51:28 AM
  • Tech Level: High
  • Ownership: more than 1 year

3 out of 5 eggsCool, Quiet, Hermetic Seal May Break. Save your Invoice.

This review is from: Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

Pros: This is a lower cost unit which performs well and is quiet.

Cons: I have recommended this in at least 20 builds, and in the last 2 years, I have had 2 customers return with the unit devoid of liquid.

One of my customers could not procure the invoice for this unit, and was unable to make a warranty claim without it.

Other Thoughts: 2/20 failure rate is not terrible, the coolers that leaked did not cause liquid damage to the components, as it seemed to slowly evaporate from the unit vs. spilling, but there are other brands that I have had a zero failure rate on in the same amount of time.

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  • feltus m.
  • 3/30/2015 5:43:53 AM
  • Tech Level: Somewhat Low
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsnice upgrade

This review is from: Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

Pros: bought this trying water cooling started with stock heatsink an fan dont know why they even bother,went with aftermarket heatsink an fan temps came down but was not satisfied,gaming is very demanding,so this cooler brought my temps down to stable temp

Cons: mounting on to cpu is challenging but doable, used amd original backplate is easier to use,gave 4 eggs because of cpu bracket mount

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  • Javier R.
  • 3/27/2015 8:40:05 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year

1 out of 5 eggsIt leaked

This review is from: Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

Pros: Before it leaked. It kept my CPU at Idle around 26-29 C. On Max load it didn't go past 55 C. The installation like many have stated was a bit difficult and I needed a second pair of hands to install.

Cons: I bought this on Thanksgiving weekend at a retail chain in San Jose. It has worked fine but now it has leaked all over my EVGA GTX 570 and on my motherboard. I really don't know if my motherboard and GPU are destroyed by the leak. It seems to have been leaking from the swivel.

Other Thoughts: It yet remains to be seen whether both my GPU and Mobo are destroyed. I worked really hard to build the rig of my dreams and now it could be gone due to faulty design in part of Antec.

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  • garrett s.
  • 3/16/2015 11:47:14 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDo Not Get This

This review is from: Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

Pros: Small and easy to install.

Cons: Started to heat up and get very loud after a few months. I ended up buys a different cpu cooler.

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  • Tammy L.
  • 3/15/2015 10:40:00 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGood all-in-one.

This review is from: Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

Pros: 1. Almost silent at idle, still quiet at load.
2. Effective cooling - AMD FX-6300 sitting in 20's at idle and 30's at 100% load/4.1ghz dynamic clock.
3. Temp indicator is useful and looks cool.
4. Included shroud improves airflow.
5. Unique combined pump/fan design reduces number of moving parts, moves pump away from the waterblock, and may increase reliability.

Cons: 1. The unique pump/fan design is somewhat bulky, especially with the shroud; check your space measurements to make sure it'll fit where you want it.

2. It's not expandable like a DIY solution, but you already know that.

Other Thoughts: I'm happy with it. It was $37 on sale and after rebate. It isn't too difficult to install if you have some experience. If it fits your cooling and space needs you can't go wrong with it, and there's also a 240mm model available.

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  • Anonymous
  • 3/8/2015 8:01:16 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsNot happy

This review is from: Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

Pros: The light telling you the temperature is pretty nice

Cons: The fan was a little loud when it got a little warm atleast until the fan stopped spinning and just twitched luckily I have a push pull method off two power lines so I can still use it till I replace

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  • Anonymous
  • 3/5/2015 7:59:16 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

1 out of 5 eggsWaste of money

This review is from: Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

Pros: Felt great when I threw this in the bin.

Cons: Everything

Other Thoughts: I bought this cooler to go with my new fx 8350 and it failed miserably. I gave it a good run of 5 months in that time I had reapplied thermal paste at least 8 times and even had my friend who has also built many pc's install the unit from scratch 2 times. I did speak to antec and was told the temperatures I was getting were the standard temps to be expected. Eventually I got sick of the high temperatures I was receiving. I took it out put on the stock standard cooler that came with my cpu and temp is now 30 - 40 degrees cooler. Really wish I had just thrown it away earlier but i really did want it to work since I had spent the money on it.

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  • Anonymous
  • 1/27/2015 6:50:28 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsgood...not great

This review is from: Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

Pros: *Radiator of good quality
*Pretty light on cpu block to tell you the temp.
*comes with all brackets and hardware for multiple applications.

Cons: The cooler design is awful, the variable speed fan is "farbage" <(spelled wrong on purpose) doesn't move any air at all. The way they des

Did you find this review helpful? Yes No

  • david b.
  • 1/13/2015 5:03:09 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsDoes what it is supposed to!

This review is from: Antec KUHLER H2O 650 Water/Liquid CPU Cooler 120MM

Pros: It works. Looks Great. End...

Cons: ...... It wasn't Free?

Other Thoughts: Like i said it worked great was easy to install and has no issues. Can NOT ask for much more.

Did you find this review helpful? Yes No

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Home > 
Computer Hardware > 
Fans & PC Cooling > 
Water / Liquid Cooling > 
Antec > 
Item#: N82E16835209078
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