The Coolermaster Hyper 612S CPU cooler is one of the new editions to Coolermaster’s silent range. The 612S cooler brings silent running parallel to the great cooling performance. The Coolermaster 612S is fitted with a copper-based heatpipe design with a overall large sized unit. The low level noise is great but how well does the cooler dissipate the processors burning temperature? Let’s fine out...


  • Optimized for better heat dissipation at lower fan speeds.
  • Unconventional heatpipe layout; all 6 heatpipes cross CPU “hot zones” to cool more efficiently.
  • Quick-snap fan bracket design for easier installation.
  • Fan adjustable to super low speeds (900 RPM with Silent Mode Adapter); provides almost noiseless performance.


CPU Socket

Intel© Socket LGA1366/1156/1155/775
AMD Socket AM3/AM2+/AM2

Dimension (W / H / D)

140x128x163 mm (5.5x5x6.4 inch)

Heat Sink Dimensions

136 x 100 x 163 mm (5.4x3.9x6.4 inch)

Heat Sink Material

Copper Base/Aluminum fins/6 Heatpipes

Heat Sink Weight

806g (1.78 lb)

Fan Dimension (W / H / D)

120x120x25 mm (4.7x4.7x1 inch)

Fan Speed

1300 RPM ±10%
(900RPM with silent mode adapter)

Fan Airflow

52.6 CFM (36.4 CFM @900RPM)

Fan Air Pressure

1.14mm H2O (0.55mm H2O @900RPM)

Fan Life Expectancy

40,000 hours

Bearing Type

Long Life Sleeve



Fan Noise Level (dB-A)

22.5dBA (16.1dBA @900RPM)

Fan Weight

102g (0.23 lb)

EAN Code



Packaging & Contents

The box has the new purple and white theme applied with the promotion of a few features on the front such as the coolers silent performance.


The contents is almost the same as the recently reviewed Coolermaster Gemini II series, the SF524 and the M4 cooler, apart from the Hyper 612S includes a secondary pair of clipping bars for you to dual fan your CPU cooler.

Contents include the Intel and AMD mounting bars for the compatible sockets listed above. Also included are rubber pads, nuts and Coolermaster’s standard thermal paste which you only get a small amount, the thermal compound is of a high grade solution. The cooler is installed only via the nuts with the easy to utilise nut setter. With this kit for both Intel and AMD, CPU cooler installation is made very easy and quick.