NZXT Kraken X40 & X60 CPU Water Cooler Reviews

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NZXT Kraken X40 & X60 CPU Cooler Introduction

NZXT has been making CPU coolers, computer cases, and other PC enthusiast related products for quite some time now.  On the CPU cooler side of things, they have more recently created their Kraken series sealed liquid CPU coolers.  This cooler is one that allows NZXT to tout as being the world’s first manufacturer to have a 140mm and 280mm radiator on a sealed water cooling system.  These slightly larger radiator sizes, 36% larger to be more precise, are sizes that they’re hoping will give them the edge over other similar popular products that are already doing really well.  A lot of today’s computer cases have 140mm fans, so it should be pretty easy to find room for even the small Kraken x40 kit.

NZXT Kraken x40

NZXT definitely brought these Kraken Series radiators to the market with a competitive and attractive price.  At time of writing this article, you can get your hands on the Kraken x40 (RL-KRX40-01) for $99.99 shipped on Amazon, or $109.99 shipped for the x60 (RL-KRX60-01).  Both of these come with a nice two year warranty, too!

At the heart of both the Kraken x40 and x60 is a slick water block with the pump built-in.  This Asetek Gen4 all copper base uses both micro channels and a split flow design, which will allow it to be the most efficient cold plate on the market by reducing thermal resistance.  When designing the pump portion, NZXT didn’t want it to be obtrusive with its looks, but rather their goal was to keep it simple and sexy; I think they nailed that one!

What’s also great about the Kraken line is their flexibility.  These coolers have an extra long, 16 inch tubing, which will allow the Kraken to be mounted in very large of cases without issue.  All of the wires that are attached to the pump are encased in a black sleeve to make things that much more sleek.

The radiator used with both Kraken liquid coolers is a slim radiator that is painted a flat black throughout.  Also with both is the ability to install fans in a push/pull configuration to get the absolute best out of your new investment.

NZXT Kraken Radiator

Fan wise, the x40 will have a single 140mm fan, while the x60 will have two 140mm fans.  NZXT didn’t want to leave you hanging with junk fans, so they include their award winning FX-140 fans.  These PWM controlled liquid bearing fans feature sleeved cables and an RPM range of 800-2000 RPMs.  Theses beasts can push over 98 CFM at full speed, though while screaming at 37dBA.  This should prove to be some sweet cooling power!

NZXT Kraken Technical Specifications:

  • Model Number:
    • x40  RL-KRX40-01
    • x60:  RL-KRX60-01
  • Fan Air Flow:  54.0 – 98.3 CFM
  • Fan Air Pressure:  0.8 – 2.2 mm-H2O
  • Material:  Copper / Aluminum / Rubber / Plastic
  • Fan Bearing:  Liquid State Bearing
  • Motor Speed:  2900 +/- 150 R.P.M.
  • Motor Voltage:  12 V
  • Fan Connector:  4-Pin PWM
  • Motor Connector:  3-Pin
  • Fan Control:  Interactive Digital Fan Control
  • Compatibility:  Intel LGA 2011, 1366, 1156, 1155, 1150 CPUs / AMD FM2, FM1, AM3+, AM3, AM2+, AM2 CPUs
  • Motor Current:  175 mA
  • Fan Dimensions:  140 (W) x 140 (H) x 25 (D) mm
  • Number of Fans Included:
    • x40:  1
    • x60:  2
  • Number of Fans Supported:
    • x40:  2
    • x60:  4
  • Radiator Dimensions:
    • x40:  138.4 (W) x 172.5 (H) x 27.0 (D) mm
    • x60:  138.4 (W) x 312.5 (H) x 27.0 (D) mm
  • Fan Model:  NZXT FX-140 PWM
  • Fan Noise Level:  21 – 37 dBA
  • Tube Length:  400 mm
  • LED Color:  Hue Controlled Color Changing Lights
  • Fan Speed:  800 – 2000 +/- 10% R.P.M.
  • Fan Voltage:  4.5 – 12 V
  • Warranty:  2 Years

For added control of the entire Kraken system, NZXT has developed the Kraken Control software.  In here, you’ll be able to do various things, like monitor your liquid temperature and CPU temperatures, turn on the predefined Silent or Extreme cooling profiles, customize when you want the fans to ramp up and to what speed, or even just change the LED color on the pump.

Let’s move on and take a look at the retail packaging, then take a closer look at both Kraken’s that we have today!

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  • Guest

    Hi, i run a crossfire with the x40 on each GPU. i noticed i can only control one of the pumps/fans. Any idea why?

    Thank You

  • David

    Hi, I noticed that you installed your x60 backwards (hoses on the right, resulting in the nzxt logo being upside down) and left in the rear 140mm fan. Most builds I’ve seen pictures of floating around remove the 140mm fan from the rear and install the x60 (hoses on the left) resulting in the logo being right side up. 2 questions 1) do you recommend installing it the way you installed yours (leaving in the rear 140 mm fan) and 2) is there a reason you installed it upside down in terms of the logo?

    • BuzzFuzz

      David, it doesn’t matter in which way.. they turned that way coz of pipe maybe looks better this way. cheers