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$63.66

Noctua NH-U9DX I4 - 92mm CPU Cooler for Intel LGA2011/1366/1356
[NH-U9DX i4]

  • NH-U9DX i4
  • NH-U9DX i4
  • NH-U9DX i4
  • 3U compatible, 100% RAM Compatible, PWM Support & Low noise adaptors included
  • SecuFirm2 Mounting System
  • New Noctua NF-A9 PWM Fans mounted aboard including NT-H1 cooling paste
  • 6 Years Warranty

Stock Status: Stock Available



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Noctua's DX line of coolers has become a default choice in high performance quiet cooling solutions for Intel Xeon CPUs. The latest i4 revision supports LGA2011 (both Square ILM and Narrow ILM), LGA1356 and LGA1366 based Xeon platforms and the 9cm model NH-U9DX i4 comes equipped with two of Noctua’s award-winning NF-B9 premium fans with PWM for automatic speed control. Standing 125mm tall, the NH-U9DX i4 combines outstanding quiet cooling efficiency with full 4U compatibility. Fitted with the professional SecuFirm2™ mounting system and bundled with Noctua's industrial-grade NT-H1 thermal compound, the NH-U9DX i4 forms a complete premium quality package for quietly cooling Xeon based workstations and servers.
Award-winning NH-U series

Award-winning NH-U series

The NH-U9DX i4 is based on the latest version of Noctua's award-winning NH-U9 coolers. First introduced in 2005, the NH-U series has become a standard choice for premium quality quiet CPU coolers and won more than 400 awards and recommendations from leading international hardware websites and magazines.
4U Compatibility

4U Compatibility

Sporting four heatpipes, a surface area of more than 3800cm² and two premium grade 92mm fans, the NH-U9DX i4 provides a significant upgrade in quiet cooling performance compared to common 2U solutions. At the same time, its 125mm height makes it fully compatible with standard 4U cases.
2x NF-B9 92mm Premium Fan

2x NF-B9 92mm Premium Fan

The award-winning NF-B9 92mm premium fan features Noctua's renowned SSO bearing as well as advanced aerodynamic optimisations such as Bevelled Blade Tips and Vortex-Control Notches. In order to achieve its superb quiet cooling capability, the NH-U9DX i4 comes equipped with two NF-B9 fans in a push/pull setup.
PWM support and Low-Noise Adaptor

PWM support and Low-Noise Adaptor

The NF-B9 92mm fans supplied with the NH-U9DX i4 support PWM for convenient automatic speed control through the mainboard. In addition, the maximum fan speed can be reduced from 1600 to 1300rpm using the supplied Low-Noise Adaptors for even quieter operation.
SecuFirm2™ mounting system

SecuFirm2™ mounting system

Noctua's SecuFirm2™ mounting systems have become synonymous with quality, safety and ease of use. Supporting Intel's LGA2011 (both Square and Narrow ILM), LGA1356 and LGA1366 Xeon platforms, the SecuFirm2™ mounting included with the NH-U9DX i4 guarantees perfect contact pressure and maximum convenience on all sockets.
NT-H1 thermal compound

NT-H1 thermal compound

Having received more than 100 awards and recommendations from hardware journalists around the world, Noctua's NT-H1 is a proven professional grade TIM solution that provides minimum thermal resistance, excellent ease of use and outstanding reliability.
6-year manufacturer’s warranty

6-year manufacturer’s warranty

Noctua products are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the supplied NF-B9 models feature an MTBF rating of more than 150.000 hours and the entire NH-U9DX i4 package comes with a full 6-year manufacturer's warranty.
Cooler Specifications
Socket compatibilityIntel LGA2011-0 & LGA2011-3 (Square ILM & Narrow ILM), LGA1356, LGA1366 (with Xeon backplate)
Height (without fan)125 mm
Width (without fan)95 mm
Depth (without fan)71 mm
Height (with fan)125 mm
Width (with fan)95 mm
Depth (with fan)95/120* mm
Weight (without fan)460 g
Weight (with fan/s)550/640* g
MaterialCopper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Fan compatibility92x92x25
Scope of Delivery
  • 2x NF-B9 PWM premium fan
  • Low-Noise Adaptor (L.N.A.)
  • NT-H1 high-grade thermal compound
  • SecuFirm2™ Mounting Kit
Warranty6 Years

FAN Specification
Model Noctua NF-B9 PWM
Bearing SSO2
Max. Rotational Speed (+/- 10%)1600 RPM
Max. Rotational Speed with L.N.A. (+/- 10%)1300 RPM
Min. Rotational Speed (PWM, +/-20%)300 RPM
Max. Airflow64,3 m³/h
Max. Airflow with L.N.A.52,6 m³/h
Max. Acoustical Noise17,6 dB(A)
Max. Acoustical Noise with L.N.A.13,1 dB(A)
Input Power0,96 W
Voltage Range12 V
MTBF> 150.000 h
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