The marketplace today is flooded with heatsinks that weigh about 2 pounds, and are 120mm or more in at least one dimension so they can fit the largest common fan size.  This can make it hard for HTPC builders, or anyone who is looking at upgrading a rack-mount case.  FrostyTech has found a heatsink from Akasa, the AK-975Cu which is designed to fit in a 2U case.  It is 77x56x89mm and weighs in at 350g, with a pair of heatpipes and isn’t going to be much competition for the Thermalright Ultra 120, or other high end coolers, but then those coolers don’t have a hope of fitting into the same places this heatsink can.
“The Akasa AK-975Cu is a compact little Intel socket 775 heatsink that stands no more than 77mm tall. It comes with a 70mm PWM fan that varies in speed from 1000-3500RPM, and a convenient patch of pre-applied thermal compound on its base. The cooler is based on a copper block with aluminum fins and a pair of copper heatpipes to help distribute the heat to stubby cooling fins. All joints are soldered to lower thermal resistance.”

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