"Zalman's CNPS9900 Max is built with better heat conducting 'composite heatpipes,' a more robust mounting system, a larger copper base plate that is machined flat and a 130mm diameter fan. The face lift and design revisions aren't cosmetic, the CNPS9900 Max heatsink performs much better than its forerunner and offers very good low noise cooling too. Like most Zalman heatsinks, the CNPS9900 Max is based off entirely original design concepts; two radial fin arrays surrounding an inset 130mm PWM fan that draws air past one set of cooling fins before exhausting it through the second."
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