The Silencio 650 not only resembles a cleaner version of Cooler Master's more aggressive HAF series, but it touts many attractive features, chief among which is sound absorbing foam mats and specially designed air vents to minimize noise while maintaining low operating temps.

The Silencio's ability to muffle high-end hardware is undoubtedly its key selling point, but there's plenty more to see here. Other noteworthy features include a "DualBoot HDD Switch" for toggling between OSes, a fan speed controller, a memory card reader, 1amp USB 3.0 ports for charging smartphones and tablets, as well as X-Dock, Cooler Master's hot-swappable 2.5"/3.5" HDD/SSD drive bay.

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Without question one of the most affordable and thus commonly upgraded components by PC builders and enthusiasts alike is the CPU cooler. Generally the main goal is to lower operating temperatures, but aftermarket coolers can also reduce operating volumes and provide a greater overclocking headroom.

Included in the comparison are top contenders in the form of the Thermalright True Spirit 140, Prolimatech Panther, Thermaltake Frio Advanced and Noctua NH-C14. All four designed to support multiple platforms on both AMD and Intel camps.