Noctua NH-U12S DX-4677 Air CPU Cooler
The Noctua NH-U12S DX-4677 Air CPU Cooler is a dedicated cooling solution for Intel LGA4677 processors. This high-performance cooler features a customized large base. It ensures optimal contact and heat transfer. Furthermore, it comes equipped with two premium NF-A12x25 PWM fans. This delivers exceptional cooling while maintaining low noise levels. It is an ideal choice for demanding workstation and server environments.
Dedicated Cooling for Intel LGA4677:
The Noctua NH-U12S DX-4677 is specifically designed for Intel Xeon LGA4677 sockets. Its customized larger base ensures full coverage and superior thermal contact with these processors. Therefore, it provides highly efficient heat dissipation. This dedicated design guarantees optimal performance for your high-end Intel Xeon CPUs. Please note, this cooler is not compatible with smaller sockets.
Dual NF-A12x25 PWM Fans for Superior Performance:
This cooler comes with two award-winning Noctua NF-A12x25 PWM premium fans. These fans operate at a maximum rotational speed of 2000 RPM. They deliver an impressive airflow of 102.1 m³/h. Additionally, their acoustical noise level is a mere 22.6 dB(A). Consequently, they provide powerful cooling while remaining remarkably quiet. This ensures optimal thermal performance without excessive noise.
Robust Construction and Easy Installation:
The NH-U12S DX-4677 is built with high-quality materials. It features a copper base and heat-pipes. The cooling fins are made of aluminum. All joints are soldered and nickel-plated. This robust construction ensures long-term durability and efficient heat transfer. Furthermore, the included SecuFirm2™ mounting kit simplifies installation. A NM-SMT5 Torx® T30 mounting tool is also provided for convenience.
Pre-Applied Thermal Compound and Comprehensive Accessories:
For immediate use, NT-H1 high-grade thermal compound is pre-applied to the cooler’s base. This ensures excellent thermal conductivity from the start. The scope of delivery also includes an NA-YC1 4-pin PWM y-cable. This allows both fans to be controlled from a single motherboard header. Therefore, installation is straightforward. You can quickly set up your cooling solution.
Key Features & Specifications:
The Noctua NH-U12S DX-4677 Air CPU Cooler is a premium solution. It combines dedicated compatibility, powerful cooling, and robust construction for Intel LGA4677 platforms.
- Product Name: Noctua NH-U12S DX-4677 Air CPU Cooler
- Model Number/SKU: NH U12S DX 4677
- Socket Compatibility: Intel Xeon LGA4677
- Height (with fan): 158 mm
- Width (with fan): 125 mm
- Depth (with fan): 97 mm
- Weight (with fan): 1018 g
- Material: Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
- Included Fans: 2x Noctua NF-A12x25 PWM premium fan
- Fan Bearing: SSO2
- Max. Fan Rotational Speed: 2000 RPM (+/- 10%)
- Min. Fan Rotational Speed (20% PWM): 450 RPM (+/- 20%)
- Max. Fan Airflow: 102.1 m³/h
- Max. Fan Acoustical Noise: 22.6 dB(A)
- Fan Input Power (Max): 1.68 W
- Fan Operating Voltage: 12 V
- Fan MTTF: > 150,000 hours
- Thermal Compound: NT-H1 high-grade thermal compound (pre-applied)
- Mounting Kit: SecuFirm2™ mounting kit for LGA4677
- Included Tool: NM-SMT5 Torx® T30 mounting tool
- Warranty: 6 Years
Important Installation Note:
Please remember that installing an LGA4677 processor and heatsink requires a plastic CPU carrier frame. These frames are included with boxed retail CPUs. They are also available separately via Intel sales partners for tray type CPUs. Different CPUs require different carrier frame types (E1A, E1B, or E1C). Therefore, ensure you purchase the correct carrier frame for tray type CPUs. This is crucial for proper installation.
Explore more CPU coolers or visit the official Noctua product page for detailed information and support.


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