Data center cooling just got a precision upgrade. Arctic’s latest Freezer 4U-OneX cooler isn’t just another tower—it’s a specialized solution for AmpereOne processors on the LGA5964 socket, a niche that’s growing in high-performance computing. While most server coolers rely on bulk airflow or multi-tower setups, this single-tower design packs dual thermal interfaces (MX-7 paste on the die plus IHS pads) and a push-pull fan arrangement to maximize heat transfer without sacrificing space.
The 151mm height keeps it compatible with standard 4U server cases, making it one of the few coolers that balances performance and form factor in tight racks. At $57.99, it’s priced aggressively for a product targeting enterprise workloads, though the real question is whether its efficiency justifies the trade-offs in other environments.
What’s Different?
- Dual thermal coverage: MX-7 paste on the die + thermal pads on the IHS for full contact.
- Push-pull airflow: Optimized for high-heat AmpereOne CPUs without multi-fan complexity.
- Compact height: 151mm fits 4U cases while maintaining airflow efficiency.
- Socket lock: LGA5964 compatibility (no Threadripper support).
- Price: $57.99—unusually low for a server-grade cooler.
Who Needs This?
This cooler is a clear win for data centers running AmpereOne workloads where space is constrained. The dual-thermal interface approach ensures consistent performance under heavy loads, but the lack of Threadripper support limits its appeal for general-purpose builds. For most consumers or even mid-range servers, a multi-fan air cooler or AIO liquid cooler would still be a better fit. That said, the $57.99 price could make it a compelling option for DIY server enthusiasts testing AmpereOne hardware.
The Freezer 4U-OneX arrives as Arctic continues to refine its server cooling lineup, following recent expansions like the MX-7 thermal compound and Pro Reverse fan series. Its debut at Computex 2025 signals a push into specialized enterprise cooling—though whether it disrupts the market or remains a niche tool depends on how widely AmpereOne adoption spreads.
