Noctua NH-U9 TR4-SP3 CPU cooler 92mm Brown

Compact 92mm cooler for Threadripper and Epyc

The Noctua NH-U9 TR4-SP3 is a dedicated 92mm single-tower air cooler built for AMD sTRX4, TR4 and SP3 sockets. It uses a customised larger base and the SecuFirm2 mounting system to fit Ryzen Threadripper and Epyc processors such as the 3990X, 2950X, 2920X and Epyc 7001, 7002, 7003 series. Two NF-A9 92mm PWM fans run in push-pull configuration with NT-H1 thermal compound included. The design has earned more than 300 awards and recommendations.

Suited for space-restricted workstation builds

This cooler targets builders assembling compact Threadripper or Epyc systems where a 92mm footprint is required for case clearance or PCIe slot access. It is not for buyers who need a cooler for any other socket platform, because the customised base makes it incompatible with standard mounting kits and other CPU sockets. Users planning to reuse the cooler on future mainstream desktop platforms should look elsewhere.

Handles high-core-count CPUs in tight chassis

The dual-fan push-pull arrangement delivers strong thermal capacity for multi-core Threadripper and Epyc chips within a 4U-compliant height. It runs out of headroom when sustained workloads push the processor beyond what a 92mm single-tower design can dissipate in a restricted airflow environment. Builders chasing maximum overclocking headroom on flagship parts will need a larger cooler.