Noctua NH-D9DX i4 3U - Processor cooler - (for: LGA1366, LGA2011, LGA1356, LGA2011-3) - aluminum with nickel plated copper base - 92 mm

SecuFirm2 mounting system. Noctuas SecuFirm2 mounting systems have become synonymous with quality, safety and ease of use. Supporting Intels LGA2011, LGA1356 and LGA1366 Xeon platforms, the SecuFirm2 mounting included with the NH-D9DX i4 guarantees perfect contact pressure and maximum convenience on all sockets. NF-A9 premium fan. The highly optimized NF-A9 premium fan features Noctuas proprietary AAO frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, which allows it to further improve the renowned efficiency of Noctuas previous 92mm models and contributes to the NH-D9DX i4ft superior cooling performance. 3U compatibility. The NH-D9DX i4 stands only 110mm tall. This is 15mm less than previous 4U compliant 9cm DX-line coolers and allows the NH-D9DX i4 to also fit 3U cases - ideal for noise-sensitive 3U applications in fields such as audio or video processing! Dual fan ready. The NH-D9DX i4 includes an extra set of fan mounting clips for users who want to achieve even better cooling performance by adding a second, optional NF-A9 to the front fin stack. Using the y-cable supplied with the NF-A9 PWM retail fan, both fans can be connected to one CPU fan header. 100% RAM compatibility. With its 95x95mm footprint, the NH-D9DX i4 does not overhang the RAM slots on LGA2011 square ILM, LGA1366 and LGA1356. This gives the user full access to the memory modules and guarantees 100% compatibility with tall heat-spreaders or optional memory fans. PWM support and low-noise adaptor. The NF-A9 92mm fan supplied with the NH-D9DX i4 supports PWM for convenient automatic speed control through the mainboard. In addition, the maximum fan speed can be reduced from 2000 to 1550rpm using the supplied Low-Noise Adaptor for even quieter operation.