ARCTIC Freezer 4U-Altra Dissipatore CPU ad aria per Intel LGA4677 & AMD SP6, 8 heatpipe, ventola PWM 120mm, 250W TDP

Engineered for the most demanding server and workstation environments, the ARCTIC Freezer 4U-Altra delivers an exceptional 250W TDP cooling capacity on Intel LGA4677 and 300W on AMD SP6 platforms. Its eight 6mm copper heat pipes and dense aluminum fin stack efficiently dissipate heat, while the 120mm PWM fan pushes up to 67.2 CFM of airflow at a whisper-quiet 0.3 sone. Pre-applied ARCTIC MX-6 thermal compound ensures optimal heat transfer right out of the box.

Overview

The Freezer 4U-Altra is a high-performance CPU air cooler specifically designed for 4U server chassis and professional workstations. It supports a wide range of sockets, including Intel LGA4677, LGA4189, LGA2066, LGA2011, LGA1700, LGA1200, and LGA115X, as well as AMD SP6, SP3, sTRX4, TR4, AM5, and AM4. This makes it a versatile solution for system builders and IT professionals who need reliable cooling across multiple platforms.

What stands out

• Massive cooling capacity: handles up to 250W TDP on Intel and 300W on AMD, ideal for high-core-count CPUs.
• Eight 6mm copper heat pipes with direct-touch technology for rapid heat absorption.
• 120mm PWM fan with fluid dynamic bearing for long life and quiet operation (400–2300 RPM).
• Pre-applied ARCTIC MX-6 thermal paste—no mess, no guesswork.
• Broad socket compatibility covers current and legacy server/workstation platforms.
• Compact 4U form factor fits standard rackmount chassis without clearance issues.

Technical details

• Cooler Type: CPU Air Cooler
• Socket Compatibility (Intel): LGA4677, LGA4189, LGA2066, LGA2011-0, LGA2011-3, LGA1700, LGA1200, LGA115X
• Socket Compatibility (AMD): SP6, SP3, sTRX4, TR4, AM5, AM4
• Max TDP (Intel): 250 W
• Max TDP (AMD): 300 W
• Fan Size: 120 mm
• Fan Speed: 400 - 2300 RPM (PWM controlled)
• Max Airflow: 67.2 CFM (114.2 m³/h)
• Max Static Pressure: 2.2 mm H₂O
• Max Noise Level: 0.3 Sone
• Number of Heat Pipes: 8
• Heat Pipe Diameter: 6 mm
• Heat Pipe Material: Copper
• Fin Material: Aluminum
• Thermal Paste: ARCTIC MX-6 (pre-applied)
• Power Connector: 4-Pin PWM
• Bearing Type: Fluid Dynamic Bearing
• Recommended Use: Server, Workstation

Our verdict

The ARCTIC Freezer 4U-Altra is a top-tier cooling solution for professionals who demand reliability and performance. Its robust construction, extensive socket support, and efficient thermal design make it an excellent choice for 4U servers and high-end workstations. With pre-applied MX-6 paste and a quiet PWM fan, installation is straightforward and operation is unobtrusive. If you need serious cooling in a compact form factor, this cooler delivers.