Noctua NH-U12S Cooling Fan/Heatsink - 0.98in Maximum Fan Diameter - 411.2 gal/min Maximum Airflow - SSO2 Bearing

120 mm Focused Flow fan. Recommended by more than 150 hardware publications and thousands of enthusiasts world-wide, the Noctuas premium quality NF-F12 Focused Flow 120 mm fan is renowned to combine superb static pressure, excellent heatsink performance and surprising quietness of operation. 100% RAM compatibility. Thanks to its slim design, the NH-U12S will not overhang the RAM slots even with two fans installed. This gives the user full access to the memory modules on all current CPU sockets and guarantees 100% compatibility with tall heatspreaders or optional memory fans. SecuFirm2 mounting system. Noctuas SecuFirm2 mounting systems have become synonymous with quality, safety and ease of use. The SecuFirm2 mounting included with the NH-U12S guarantees perfect contact pressure and maximum convenience on all current sockets. Classic 120 mm tower size for excellent overall compatibility. The NH-U12S is short enough to fit most modern mid- or high-end tower cases. Measuring 125 mm wide, the cooler stays clear of the top PCIe slot on standard ATX or Micro-ATX motherboards, ensuring best compatibility with SLI and CrossFire setups. PWM support and low-noise adaptor. The NF-F12 120 mm fan supplied with the NH-U12S supports PWM for convenient automatic speed control through the mainboard. In addition, the maximum fan speed can be reduced using the supplied low-noise adaptor for even quieter operation.