While NH-U12S comes with NF-F12, 120 mm FocusedFlow™ fan, NH-U14S features 6 heatpipe design and NF-A15, 140 mm fan. Both fans support PWM for automatic speed control through mainboard, and max fan speed can be reduced from 1,500–1,200 rpm using supplied Low-Noise Adaptor for quieter operation. Design facilitates RAM access and promotes compatibility with tall memory modules. Other standard features include pro-grade SecuFirm2™ multi-socket mounting system and NT-H1 thermal compound.
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