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A silent storm aroused by Hyper 612 PWM brings you the ultimate CPU silent cooling solution. With the use of PWM fan Hyper 612 PWM can run at low noise but keep excellent cooling performance thanks to its massive dimensions, wider fin gaps, and a special heat pipe layout that has all 6 heat pipes crossing the CPU’s “hot spot.” The Hyper 612 PWM CPU coolers are designed for optimum heat dissipation at low fan speeds to rescue you from noise nightmare.


  • Optimized with wider fin gaps and resistance reduction cut-offs for low fan speed condition.

  • Unconventional layout of the heatpipe direction: all 6 heat pipes can cross over the “hot zone” on most of the modern CPUs for better cooling efficiency.

  • Quick-snap fan bracket design for easier installation.

  • Wide range PWM fan (600 – 2000 R.P.M.) provides versatile performance for full loading efficiency and for quiet idling.




  •  Specifications
    Model RR-H612-20PK-R1
    CPU Socket Intel Socket:
    LGA 1366 / 1156 / 1155 / 775 *

    AMD Socket:
    FM1 / AM3+ / AM3 / AM2+ / AM2
    CPU Support Intel:
    Core™ i7 Extreme / Core™ i7 / Core™ i5 / Core™ i3 / Core™2 Extreme / Core™2 Quad / Core™2 Duo / Pentium / Celeron

    Phenom™ II X4 / Phenom™ II X3 / Phenom™ II X2 / Phenom™ X4 / Phenom™ X3 / Athlon™ II X4 / Athlon™ II X3 / Athlon™ II X2 / Athlon™ X2 / Athlon™ / Sempron™
    Dimension 140 x 128 x 163 mm (5.5 x 5.5 x 6.4 inch)
    Heat Sink Material Copper Base / 6 Heat Pipes / Aluminum Fins
    Heat Sink Weight 806g (1.78 lb)
    Fan Dimension 120 x 120 x 25 mm (4.7 x 4.7 x 1 inch)
    Fan Speed 600 - 2000 RPM (PWM) ± 10%
    Fan Airflow 24.9 - 82.9 CFM ± 10%
    Fan Air Pressure 0.3 - 2.7 mmH2O ± 10%
    Bearing Type Long Life Sleeve Bearing
    Fan Life Expectancy 40,000 hours
    Fan Noise Level (dB-A) 9 - 36 dBA
    Connector 4-Pin
    Fan Weight 104g (0.23 lb)
    Notice * Supplied accessories may differ by country or area. Please check with your local distributor for further details.
    UPC Code 884102011597
    Disclaimer: Images are for informative purposes only; displayed parts and accessories may not be included in the actual product package.

    Click a thumbnail below to view a larger image. : November 2011

    "It is well built and looks attractive, is efficient and supports PWM rotation speed control, which makes its fan moderately noisy up to 1100 RPM. Moreover, Cooler Master Hyper 612 PWM will ensure processor stability at very high frequencies and core voltage settings."

    » Details

    HardwareSecrets: Golden Award : October 2011

    "The Cooler Master Hyper 612 PWM looks like a great cooler and, this time, appearances were not deceptive. It is a great cooler indeed, with a terrific performance and a good noise level."

    » Details

    Thinkcomputers: 8/10 : October 2011

    "We got a really nice idle temperature of 29C, which might be the seller for some, but the load temperatures just weren’t that impressive."

    » Details Editors Choice Gold : September 2011

    "At the end of the day we were very happy with the Cooler Master Hyper 612 PWM. The performance was very similar to quite a few other coolers that we've tested over the years but the MSRP of ~$49.99 is what set this cooler apart from them. While the Hyper 612 PWM might not win any style awards, its performance and value make it a very good choice and due to that fact has earned our "Editor's Choice - Gold" award."

    » Details Gold Silicon Award : September 2011

    "The Cooler Master H612PWM handled the fully loaded i7 930 @ 4.0GHz well enough to keep it below 90c degrees. Considering that most future platforms will use less power and produce less heat we believe it save to say that this cooler will perform well here. The gathered results are good even without a 2nd fan attached."

    » Details Recommended : August 2011

    "Both the Cooler Maser GerminII S524 and Hyper 612 PWM are solid heatsinks that perform well and are priced aggressively."

    » Details

    OCC: Silver : August 2011

    "We have the massive, heat gulping Hyper 612 PWM, and then we have the small, conservative, and thoughtful GeminII S524. Both are easy to install and offer great performance for each application. For the Hyper 612 PWM at a price of $49.99 it is definitely a great alternative to spending upwards of $80 and $90 on similarly performing coolers. The GeminII S524 price has not been listed yet, but at my estimated price of between $40 and $50 it is also a great choice for someone with a small, low-clearance case!"

    » Details Editors Choice : August 2011

    "If you are looking for cooling rather than glitz, there is absolutely no CPU cooler in this price range I would recommend over the Hyper 612 PWM......If you want Enthusiast Class cooling at a Mainstream price, the Cooler Master Hyper 612 is the CPU cooler you have been waiting for."

    » Details Great Hardware : August 2011

    "The Cooler Master 612 PWM is certainly massive but it's also quite affordable, and proven to be a very capable competitor.   Let's not forget that some premium coolers don't even come with a fan, so when you factor in the great cooling, low noise, and tempting price tag, we're left with a very good heatsink in the Cooler Master Hyper 612 PWM. "

    » Details 9/10 : August 2011

    "Our overall experience with Hyper 612 PWM has been nothing more than a pleasant one. So please consider Hyper 612 PWM if you are looking to upgrade or build from scratch a new system. A strong 9 out of 10."

    » Details Golden Tachometer : August 2011

    "The performance of this cooler was excellent, almost unprecedented at this price level ($49.99 MSRP)."

    » Details Crowned Product Award : August 2011

    "When it's all said and done, the Hyper 612 PWM is a performer, and a great value performer at that, earning it some of the "big brother" honors as bigger version of the insanely popular Hyper 212+.  At the $50 price point, it looks already as if this will be yet another hard value to beat, and another winner from Cooler Master!"

    » Details Best Value Highly Recommended : August 2011

    "The Hyper 612 PWM is a plus as well at it will retail for about $50 making it a real value."

    » Details Furious 5 of 5 : August 2011

    "Overall performance was very good and suggested that the design changes seen here can actually help."

    » Details


    Name Type Release Date Description
    Hyper 612 PWM Manual 2011.08.02 Manual for Hyper 612 PWM CPU air cooler
    Hyper 612 PWM Product Sheet 2011.08.02 Product sheet for Hyper 612 PWM CPU air cooler


    Item | Question
    1.   Are there any known compatibility issues?
    2.   How do I use the PWM feature?
    3.   What are the dimensions of the Hyper 612 PWM? What should I watch out for?
    4.   What are some tips for installing the Hyper 612 PWM?

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