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Noctua’s DX line CPU coolers have become a default choice in premium grade quiet cooling solutions for Intel Xeon processors. The NH-U14S DX-3647 features a larger, custom-designed contact surface and supports both square and narrow type LGA3647 platforms. Based on the proven, 140mm size NH-U14S heatsink and equipped with Noctua’s award-winning, PWM controlled NF-A15 140mm fan, it combines maximum performance and superb acoustics. Topped off with the professional SecuFirm2™ mounting system and pre-applied NT-H1 thermal compound, the NH-U14S DX-3647 forms a complete premium quality package for quietly cooling LGA3647 based Xeon workstations and servers. 

Noctua NH-U14S DX-3647

    • Height (without fan): 165mm / (with fan): 165mm
    • Width (without fan): 150m / (with fan): 150mm
    • Depth (without fan): 52mm / (with fan): 78mm
    • Weight (without fan): 797g / (with fan): 957g
    • Material: Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
    • Fan compatibility: 140x150x25 (with 120mm mounting holes), 140x140x25 (with 120mm mounting holes), 120x120x25
    • Warranty: 6 Years
    • Bearing: SSO2
    • Max. rotational speed (+/- 10%): 1500 RPM
    • Min. rotational speed (PWM, +/-20%): 300 RPM
    • Max. airflow: 140,2 m³/h
    • Max. acoustical noise: 24,6 dB(A)
    • Input power: 1,56 W
    • Voltage range: 12 V
    • MTTF: > 150.000 h



    • Intel Socket Xeon LGA3647