Noctua NH-U14S AMP-4926 Air CPU Cooler
The Noctua NH-U14S AMP-4926 Air CPU Cooler is a premium-quality quiet CPU cooler. It is specifically designed for ARM workstations and servers utilizing LGA4926-based Ampere Altra and Altra Max processors. This cooler is tailored to Ampere’s LGA4926 platform, ensuring maximum performance and superb acoustics for high-end systems.
Key Features:
Tailored for LGA4926 Platform:
- Specifically built for LGA4926-based Ampere Altra and Altra Max processors.
- Features a customized contact surface. This ensures an exact fit into the socket cover’s cut-out, maximizing thermal transfer.
- Includes a dedicated SecuFirm2™ mounting system for LGA4926. This simplifies installation.
Maximum Performance & Superb Acoustics:
- Features a massive heatsink with six heatpipes and over 6000cm² of fin surface area.
- Equipped with two award-winning NF-A15 140mm fans in a powerful push/pull dual fan configuration. This achieves an unrivalled level of quiet cooling performance.
- Fans support PWM for automatic speed control. They run near silent at lighter loads and speed up only when necessary.
- Max. airflow is 140.2 m³/h, and max. acoustical noise is 24.6 dB(A).
Premium Quality & Easy Integration:
- Comes with pre-applied NT-H2 thermal compound. This ensures optimal bond-line thickness and saves installation time.
- Includes a 4-pin PWM splitter cable. This allows powering and controlling both fans simultaneously from a single motherboard fan header.
- Ideal for building cutting-edge, ultra-high-performance Ampere workstations and servers that run almost silently.
Explore compatible Air Coolers or check Noctua Products for other options. Find full details on the official Noctua NH-U14S AMP-4926 product page.
Specifications:
- Model: NH-U14S AMP-4926
- Socket Compatibility: LGA4926 (for Ampere Altra and Altra Max processors)
- Height (with fan): 165 mm
- Width (with fan): 150 mm
- Depth (with fan): 111 mm
- Weight (with fan): 1136 g
- Material: Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
- NSPR: 179
- Fan Model: 2x Noctua NF-A15 HS-PWM premium fan
- Fan Bearing: SSO2
- Fan Speed (Max): 1500 RPM (+/- 10%)
- Min. Rotational Speed @ 20% PWM: 300 RPM (+/-20%)
- Max. Airflow: 140.2 m³/h
- Max. Acoustical Noise: 24.6 dB(A)
- Input Power (Typical): 1.056 W
- Voltage Range: 12 V
- MTTF: > 150,000 h
- Scope of Delivery: 2x NF-A15 HS-PWM premium fan, NA-YC1 4-pin PWM splitter cable, NT-H2 high-grade thermal compound (pre-applied), SecuFirm2™ mounting kit for LGA4926, NM-SMT4 mounting tool
- Part Number: NH-U14S AMP-4926


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