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Noctua 4U Workstation / Server CPU Cooler (NH-D9 DX-3647 4U)

Noctua 4U Workstation / Server CPU Cooler (NH-D9 DX-3647 4U)
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  • Product Name:
    Noctua 4U Workstation / Server CPU Cooler (NH-D9 DX-3647 4U)
  • Model Number:
    NH-D9 DX-3647 4U
  • Brand:
  • Manufacturer Warranty:
    6 Year


Noctua NH-D9 DX-3647 4U Workstation/ Server CPU Cooler

Noctua’s DX line CPU coolers have become a default choice in premium grade quiet cooling solutions for Intel Xeon processors. The NH-D9 DX-3647 4U features a larger, custom-designed contact surface and supports both square and narrow type LGA3647 platforms. Based on the proven, 92mm size NH-D9L heatsink and equipped with two of Noctua’s award-winning, PWM controlled NF-A9 92mm fans (high-efficiency 2500rpm version), it combines strong performance with excellent compatibility for 4U systems and other space-restricted applications. Topped off with the professional SecuFirm2™ mounting system and pre-applied NT-H1 thermal compound, the NH-D9 DX-3647 4U forms a complete premium quality package for quietly cooling LGA3647 based Xeon workstations and servers. 

Noctua 4U Workstation / Server CPU Cooler (NH-D9 DX-3647 4U)



Socket compatibility: Intel   Xeon LGA3647

Height (without fan): 134 mm

Width (without fan): 95 mm

Depth (without fan): 95 mm

Weight (without fan): 584 g

Height (with fan): 134 mm

Width (with fan): 95 mm

Depth (with fan): 120 mm

Weight (with fan): 769 g

Material: Copper (base and   heat-pipes), aluminium (cooling fins), soldered joints & nickel plating

Fan compatibility: 2x   92x92x25mm

Scope of delivery:

·         2x NF-A9 PWM premium fan

·         Y-split cable

·         NT-H1 high-grade thermal compound (pre-applied)

·         SecuFirm2™ mounting kit for LGA3647

·         Noctua metal case-badge

Warranty: 6 Years


Model: 2x Noctua NF-A9 HS-PWM

Bearing: SSO2

Max. rotational speed (+/- 10%): 2500 RPM

Min. rotational speed (PWM, +/-20%): 400 RPM

Max. airflow: 96,3 m/h

Max. acoustical noise: 30,6 dB(A)

Input power: 1,68 W

Voltage range: 12 V

MTTF: > 150.000 h


Please   note that the NH-D9 DX-3647 4U is a dedicated version for the Intel LGA3647   socket. Due to its customised larger base, it cannot be used on any other   sockets and is incompatible with Noctua’s standard mounting kits.


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