Title:
Noctua NH-D9 TR5-SP6 4U – 92 mm Dual-Tower CPU Cooler (sTR5/SP6, 4U)
Short Excerpt:
Compact, server-ready dual-tower cooler with two 92 mm fans and a full-coverage TR cold plate, purpose-built for AMD sTR5 (Threadripper/Threadripper PRO) and SP6 in height-restricted 4U rackmount and dense workstation builds.
Overview:
The Noctua NH-D9 TR5-SP6 4U is a professional-grade cooler designed specifically for AMD’s large sTR5/SP6 heatspreaders and tight chassis environments. Its twin-tower fin stack and dual 92 mm PWM fans provide excellent cooling under sustained loads while maintaining low noise—ideal for WRX90 workstations and 4U servers with multi-GPU or heavy I/O. The included Noctua mounting system for sTR5/SP6 ensures precise contact across the entire IHS, and the compact height clears typical 4U restrictions without compromising serviceability.
Key Features:
• Purpose-built sTR5/SP6 base for full IHS coverage on Threadripper/PRO
• 4U-compatible height for rackmount and dense workstation chassis
• Dual 92 mm PWM fans on a dual-tower heatsink for strong sustained cooling
• Proven Noctua reliability with premium bearings and acoustics
• Robust SecuFirm2™ mounting for secure, repeatable pressure and easy installs
• Includes high-performance thermal compound for optimal heat transfer
Specifications:
• Compatibility: AMD sTR5 (Threadripper/Threadripper PRO), SP6
• Heatsink Type: Dual-tower aluminum fins with heatpipes
• Fans: 2 × 92 mm PWM (push–pull)
• Application: 4U rackmount servers, WRX90/EEB workstations, multi-GPU builds
• Clearance: Designed to avoid common interference around RAM/VRM on WRX90 boards
• Warranty: 6-Year Manufacturer Warranty
What’s in the Box:
• Noctua NH-D9 TR5-SP6 4U heatsink
• 2 × 92 mm Noctua PWM fans (pre-mounted clips included)
• SecuFirm2™ sTR5/SP6 mounting hardware
• High-performance thermal compound
• Installation guide
Options/Upgrades:
• Add front-to-back chassis fans to improve VRM/RDIMM airflow in multi-GPU layouts
• Use higher-static-pressure 92 mm PWM profiles for hotter ambient racks if needed
• Pair with quality case dust filters to maintain long-term performance
Warranty:
• 6-Year Limited Warranty
Lead Time:
• Typically in stock through Noctua resellers; confirm current availability
Notes & Compatibility Tips:
• Ensure your chassis has a 4U height envelope and straight airflow path (front-to-rear)
• For continuous 24/7 heavy loads at the 350 W class, verify chassis airflow and fan curves
• Always update motherboard BIOS/fan control and use a full-coverage paste application on TR IHS
SKU:
• NH-D9-TR5-SP6-4U