Review

The Noctua NH-U9S is a premium CPU cooler that continues the legacy of Noctua's award-winning NH-U9 series. With its compact, asymmetrical design and advanced technology such as the 5 heatpipes, it not only provides optimal cooling performance but also ensures compatibility with a wide range of Intel and AMD sockets.

Design and Compatibility

Built with a 95x95mm footprint, the Noctua NH-U9S stands out by clearing RAM and PCIe slots on Intel and most AMD mainboards, including microATX and mini-ITX ones. This makes it a versatile solution that accommodates a range of build configurations. Whether you're using a small form factor chassis or a full tower setup, its 125mm height allows for seamless integration. The source.

Cooling Performance

Equipped with a Noctua NF-A9 92mm PWM fan, the cooler facilitates automatic speed control ensuring it operates quietly while still maintaining efficient heat dissipation. For those looking for enhanced cooling performance during high-load scenarios, the option to add a second fan is available. The dual fan mode brings the NH-U9S performance up to par with larger coolers, easily handling demanding CPUs like Intel's i7-5820K even when overclocked to 30% source.

Acoustical Efficiency

Noctua is renowned for its low-noise technology, and the NH-U9S is no exception. The secondary fan maintains a noise level of around 35.9 dB at idle and 44.3 dB under load, providing a peaceful computing environment even in a dual-fan setup. This superior sound performance makes it an ideal choice for users prioritizing acoustic comfort in their PC< source.

Build and Technology

Constructed with high-quality materials, the NH-U9S embodies Noctua’s commitment to engineering excellence. The cooler integrates copper for its base and heatpipes, while its cooling fins are made from aluminum. Features like soldered joints and nickel plating add to its durability and effectiveness. Additionally, it comes with the SecuFirm2™ multi-socket mounting system, ensuring easy installation and a secure fit source.

Award-Winning Features

1. Enhanced Compatibility: With its smaller size, the Noctua NH-U9S provides 100% RAM and PCIe compatibility.
2. Performance-Optimized Design: Its compact size does not compromise on cooling, providing a similar TDP capacity when compared to larger models.
3. Low Noise Operations: The proprietary NF-A9 PWM fan and low-noise adaptor maintain outstanding quietness during operations.
4. Durability: Features like the NT-H1 thermal compound and SecuFirm2™ mounts represent Noctua’s high-quality standard.

Moreover, with over six years of extensive warranty, Noctua ensures peace of mind with long-term reliability source.

Final Thoughts

If you are in search of a CPU cooler that unites robust performance with compact design, the Noctua NH-U9S appears to be a top contender. It not only meets the requirements of being small and efficient but also brings premium-grade features to the table. Users looking to achieve high-end cooling solutions in tight spaces will find this cooler ideal for their custom builds. With its performance metrics nearly rivalling larger counterparts, especially in a dual-fan configuration, it justifies its reputation as a 'giant killer' in the CPU cooling market. Overall, the Noctua NH-U9S is a wise investment for any enthusiast or professional builder source.