FrostyTech posted a review on the Coolermaster Hyper N520 Heatsink

The Coolermaster Hyper N520 heatsink is geared for lower-noise cooling requirements. The cooler stands 142mmmm tall, is 118mm wide and accommodates two 92mm fans that spin at 1800RPM each. The heatsink weighs 688grams and is compatible with Intel Socket 775, 771, 1366 (Socket T/J/B respectively) and the entire family of AMD Socket 939/AM2+ processors.

Coolermaster Hyper N520 Heatsink Review