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Noctua NH-U12S DX-3647
  • Height (without fan): 158mm / (with fan): 158mm
  • Width (without fan): 125m / (with fan): 125mm
  • Depth (without fan): 45mm / (with fan): 97mm
  • Weight (without fan): 626g / (with fan): 1018g
  • Material: Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
  • Fan compatibility: 120x120x25
  • Warranty: 6 Years
  • Bearing: SSO2
  • Max. rotational speed (+/- 10%): 2000 RPM
  • Min. rotational speed (PWM, +/-20%): 450 RPM
  • Max. airflow: 102,1 m³/h
  • Max. acoustical noise: 22,6 dB(A)
  • Input power: 1,68 W
  • Voltage range: 12 V
  • MTTF: > 150.000 h



  • Intel Socket Xeon LGA3647

Noctua NH-U12S DX-3647

  • Product Info

    Noctua’s DX line CPU coolers have become a default choice in premium grade quiet cooling solutions for Intel Xeon processors. The NH-U12S DX-3647 features a larger, custom-designed contact surface and supports both square and narrow type LGA3647 platforms. Based on the proven, 120mm size NH-U12S heatsink and equipped with two of Noctua’s award-winning, PWM controlled NF-A12x25 120mm fans, it provides an excellent balance of performance, compatibility and quietness of operation. Topped off with the professional SecuFirm2™ mounting system and pre-applied NT-H1 thermal compound, the NH-U12S DX-3647 forms a complete premium quality package for quietly cooling LGA3647 based Xeon workstations and servers. 

  • Warranty

    6-year warranty

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