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Kraken X31

120mm liquid cooler with CAM controls

  • Full software control using our clean, feature-packed NZXT CAM software suite.
  • Our 120mm radiator platform keeps your CPU or GPU extremely cool and quiet.
  • The 120mm standard allows us to maximize compatibility among PC cases.
  • Unique variable speed pump for quiet use without sacrificing power.
  • High performance copper coldplate.
  • New FX120 V2 performance watercooling PWM fan tuned for radiator cooling.
  • Large tower support with extended 16” tubing and pre-installed Intel mounting for easy use.
  • Completely sealed system backed by an industry leading 6 year warranty.

Unavailable

$79.99
Model NumberRL-KRX31-01
Fan Airflow81.32 CFM (max.)
Fan Air Pressure0.44 - 2.76 mmH20
Fan BearingHydro Dynamic Bearing
Motor Speed2400-3600 ± 150 RPM
Fan Connector4-Pin PWM
Motor Voltage12V DC
Motor Connector3-Pin
CompatibilityIntel LGA 2011-3, 1366, 115X CPUs
AMD FM2, FM1, AM3+, AM3, AM2+, AM2 CPUs
Fan Dimensions120x120x25mm
Motor Current325mA
Radiator Dimensions155 x 120 x 30 mm
Fan Noise Level18-34 dBA
Tube Length400mm
Fan Speed800-2000 RPM ± 10%
Fan Rated Voltage12V DC
Kraken+ Software Module
Warranty6 Years
Kraken X31 ManualView Details
Kraken Series Compatibility Guide 10.22.2014PDF109 KBDownload

Overclocker's Club (OCC)Small overclockersclub 10/20/2015

For the $79.99 price tag, I think you get a lot of bang-for-the-buck. You get an All-in-One liquid cooler that can handle the heat of overclocking and, being an AIO, you get the space savings of a small, compact pump and remote mount radiator. No problems more..

Pure OverclockSmall pureoverclock 10/20/2015

The X41 in my opinion held its own against the X61 and both performed well beyond my expectations. The X41 is easily a top competitor to other units on the market today. The X31 for its size did very well on its own, and I am nitpicking here but I would h more..

goldfriesSmall goldfries 10/20/2015

The cooler retails at around RM 250, it doesn't perform as great as the 140mm models BUT it's cheap. You still get the useful controls from NZXT's top-notched software, minus the colored LED on the pump. The best thing about the X31 is that it comes with more..

Back2GamingSmall back2gaming 10/20/2015

The NZXT Kraken X31, as with many of NZXT's products, have a certain touch of quality that's hard to point out but you can feel it in the product. Performance is acceptable for a 120mm model and given the ability to control the fan and monitor performance more..

TECHPORNSmall techporn 10/20/2015

The NZXT KRAKEN X31 is a good cooler. It might be bland in the aesthetics department, but it sure is decent and has features worthy to look at. The 16 Incher tubings might not be my favorite, but it is a welcome approach especially if you're looking forwa more..

TweakTownSmall tweaktown 10/20/2015

Priced fairly for the level of performance delivered with the Kraken X31, we still feel that the CAM software should and likely will make you chose this sealed AIO over many of the others out there. more..

Hi Tech LegionSmall hitechlegion 10/20/2015

For a single 120mm CLC (closed loop cooler) to be still packed full of features, we can see that NZXT has taken their water cooling units seriously, and are looking to offer users the most features for their dollar. more..

Think ComputersSmall thinkcomputers 10/20/2015

There is plenty to love about the X31. more..

Hardware CanucksSmall hardwarecanucks 10/20/2015

The NZXT Kraken X31 offers a phenomenal price / performance ratio, a novice-friendly installation procedure, broad compatibility and loads of features not normally seen on an entry-level AIO. more..

Ocaholic.co.ukSmall ocaholic 10/20/2015

Cooling performance in combination with the 120mm PWM fan included in deliver is good. more..

NeoSeekerSmall neoseeker 10/20/2015

At a retail cost of only $79.99 the Kraken X31 is sure to be a hit with anyone needing an AIO liquid cooling system. more..

TweakTownSmall tweaktown 10/20/2015

Priced fairly for the level of performance delivered with the Kraken X31, we still feel that the CAM software should and likely will make you chose this sealed AIO over many of the others out there. more..

Free Shipping Every Day!Usually, if the items in your order total $149 or more, your order ships FREE! *US Domestic Standard Shipping Only.
NZXT Warranty PolicyTypically we process and ship your order within 24 to 48 hours from the invoice date. Exceptions include Friday orders which if they miss our cutoff time will not ship until Monday or Tuesday. We do not fulfill orders on the weekends. If we have any issue with your order (this can range from inventory discrepancies to payment issues) we will notify you as soon as possible by email and Phone in order to clear the issue and ship the order as quickly as possible. In the event we are unable to contact you regarding your order to clear up any issue, we will hold your order until we hear from you. In the case of credit card purchases that are flagged we will require you to fill out an additional Credit Card Authorization (CCA) form that we will email to you. Once we receive your CCA form back we will then process and ship your order. After your order has been processed and shipped out, you will receive the tracking information for your shipment in your email . Orders placed on the weekend or on a holiday will be processed the next immediate business day.
Flat-Rate ShippingWe offer flat rate ground shipping for all products shipping within the Continental United States. These shipments typically are sent via FedEx Ground, but we reserve the right to use alternative shipping methods and partners to get the package to your location.
International ShippingNZXT offers International shipping to nearly every country in the world via USPS International Priority. We understand the costs associated with international shipping are high, but we must account for customs tax, duty, and long range air shipping expenses (fuel, handling, etc.). We also now ship directly to Canada via FedEx International Ground. The importer is responsible for all import taxes, customs duty, or any other fees associated with transportation beyond US borders. Any orders returned due to declined customs duty, tax, or other fees will be cancelled and transaction, less the cost of international shipping, will be reversed. Please read International Returns/Exchange Policy for full details.
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Questions / IssuesNeed immediate assistance with your order? Talk to us on Live Chat from Monday through Friday, 9:00am - 5:00pm PT: NZXT Support Helpdesk. Please use the Submit A Request option when Live Chat is not available, and a Sales Representative will be able to assist you with your questions. If you have any other questions about shipping, tracking, or international availability, feel free to chat with one of our support agents in real time by using our live chat in the bottom right of the page. You can also view and open a ticket at our support portal if we aren't available to chat.
NZXT.com Store Returns/Exchange PolicyEligible products qualify for a full refund or exchange only with an authorized RMA number and the item is returned to the NZXT.com Store inventory within 30 days of purchase. Returns are not allowed beyond 30 days of the purchase date. The NZXT.com Store reserves the right to deny any return or exchange. Refunds will be credited to the original method of payment. To initiate a return, simply submit a request at support@nzxt.com.
InternationalNZXT offers International shipping to nearly every country in the world via USPS International Priority and ship directly to Canada via FedEx International Ground. We understand the costs associated with international shipping are high, but we must account for customs tax, duty, and long range air shipping expenses (fuel, handling, etc.). The importer is responsible for all import taxes, customs duty, or any other fees associated with transportation beyond US borders. Any orders returned due to declined or nonpayment of customs duty, tax, or other fees, or undeliverable packages will be cancelled and transaction, less the cost of international shipping, will be reversed. If package is undeliverable and returned to us, a new order will have to be placed if you would like to receive the products initially ordered. Any order that includes backordered items will be held until items are in stock and ready to ship. Eligible products qualify for a full refund or exchange only with an authorized RMA number and the item is returned to the NZXT.com Store inventory within 30 days of purchase. Returns are not allowed beyond 30 days of the purchase date. The NZXT.com Store reserves the right to deny any return or exchange. Refunds will be credited to the original method of payment. Shipping and handling fees for returns are not refundable. Customer is responsible for shipping costs on returns.

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