
NH-U9 TR4-SP3
9cm server & workstation cooler
Compact single-tower design
For excellent case-, RAM- and PCIe-compatibility
Dual NF-A9 92mm fans
Push/pull setup with PWM for automatic speed control
Dedicated version for sTRX4/TR4/SP3
Tailored for AMD's Threadripper / Epyc CPUs

Compact 92mm size for best compatibility
Thanks to a total width of only 95mm, the NH-U9 TR4-SP3 provides 100% PCIe clearance and never overhangs the top PCIe x16 slot. At the same time, its height of only 125mm allows it to fit smaller cases and most 4U size rack-mount enclosures.

SecuFirm2™ mounting system for sTRX4/TR4/SP3
Noctua’s SecuFirm2™ mounting systems have become synonymous with quality, safety and ease of use. The TR4-SP3 variant has been completely custom-designed for the new socket and is particularly easy to install: Put on the heatsink, fix the four spring-loaded screws and you’re done!

Dual NF-A9 PWM fans
The NH-U9 TR4-SP3 is equipped with two of Noctua’s award-winning NF-A9 PWM 92mm fans. This push/pull dual fan configuration allows it to achieve a level of quiet cooling performance that is remarkable for such a compact cooler and comes close to the bigger NH-U12S TR4-SP3.

NT-H1 thermal compound
Noctua's much-acclaimed NT-H1 is a well proven pro-grade TIM solution that provides minimum thermal resistance, excellent ease-of-use and outstanding reliability, which makes it suitable for use in professional server and workstation environments.
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