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Noctua 140mm Air CPU Cooler for Intel Xeon (NH-U14S-DX-4677)

Noctua 140mm Air CPU Cooler for Intel Xeon (NH-U14S-DX-4677)
  • CPU-Cooling-Noctua-140mm-Air-CPU-Cooler-for-Intel-Xeon-NH-U14S-DX-4677-5
  • CPU-Cooling-Noctua-140mm-Air-CPU-Cooler-for-Intel-Xeon-NH-U14S-DX-4677-2
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  • Product Name:
    Noctua 140mm Air CPU Cooler for Intel Xeon (NH-U14S-DX-4677)
  • Model Number:
  • Brand:
  • Manufacturer Warranty:
    6 Year





Socket compatibility

Intel Xeon LGA4677

Height (without fan)

165 mm

Width (without fan)

150 mm

Depth (without fan)

52 mm

Weight (without fan)

797 g

Height (with fan)

165 mm

Width (with fan)

150 mm

Depth (with fan)

111 mm

Weight (with fan)

1136 g


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



Max. TDP

see NSPR

Fan compatibility

140x150x25 (with 120mm mounting holes), 140x140x25 (with 120mm mounting holes), 120x120x25

Scope of delivery

2x NF-A15 PWM premium fan    

NA-YC1 4-pin PWM y-cable          

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

SecuFirm2™ mounting kit for LGA4677  

NM-SMT5 Torx® T30 mounting tool         



2x Noctua NF-A15 HS-PWM



Max. rotational speed (+/- 10%)

1500 RPM

Min. rotational speed @ 20% PWM (+/-20%)

300 RPM

Max. airflow

140,2 m/h

Max. acoustical noise

24,6 dB(A)

Input power (max.)

1,56 W

Voltage range

12 V


> 150.000 h



Please note that the NH-U14S DX-4677 is a dedicated version for the Intel LGA4677 socket. Due to its customised larger base, it cannot be used on smaller sockets and is incompatible with Noctua’s mounting kits for these sockets. Please refer to our socket compatibility overview for details.


Please also note that installing an LGA4677 processor and heatsink requires a plastic CPU carrier frame. These carrier frames are included with boxed retail CPUs and available separately via Intel sales partners for tray type CPUs. As different CPUs require different carrier frame types (E1A, E1B or E1C), please make sure to purchase the correct carrier frame for tray type CPUs.



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