Noctua NH-D9 DX-4677 4U Server CPU Cooler

The Noctua NH-D9 DX-4677 4U is a professional-grade 92mm dual-tower cooler specifically engineered for Intel LGA4677 sockets in 4U server chassis, delivering exceptional cooling performance within strict height constraints.

4U Server-Optimized Cooling:

Dual-Tower 92mm Design:

Featuring two NF-A9 PWM fans in push-pull configuration between dual heatsink towers, the NH-D9 DX-4677 delivers exceptional thermal performance while maintaining just 95mm total height – perfect for 4U rackmount servers (1U = 44.45mm).

LGA4677 Compatibility:

Specifically designed for Intel’s LGA4677 socket used in Xeon Scalable processors (Sapphire Rapids, Emerald Rapids), with optimized mounting pressure for proper IHS contact.

Technical Specifications:

• Model: NH-D9 DX-4677 4U
• Height: 134mm (4U compatible)
• Width: 95 mm
• Depth: 120mm
• Weight: 769 g
• Fans: 2x NF-A9 PWM (92mm)
• Fan Speed: 600-2500 RPM (±10%)
• Max. Noise Level: 22.8 dB(A)
• Airflow: 78.9 m³/h per fan
• Socket Compatibility: Intel LGA4677 only
• TDP Rating: Up to 250W (depending on airflow)

Server-Grade Features:

24/7 Reliability:

Engineered for continuous operation in demanding server environments, with SSO2 bearings rated for >150,000 hours MTTF and vibration-resistant construction.

Omni-Directional Mounting:

The symmetrical design ensures optimal performance regardless of installation orientation (horizontal/vertical) in rackmount chassis.

Professional Accessories:

• NT-H2 thermal compound
• SecuFirm2 mounting system for LGA4677
• Low-noise adapters (L.N.A.)
• 4-pin PWM y-cable
• Anti-vibration pads
• Mounting screwdriver

Explore more server cooling solutions or visit Noctua’s official product page for detailed specifications.