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Cool logic for Hot racks: Stulz CyberRack SideCooler

News | 10.09.2025

Each year, the demands for computing power grow, leading to an increase in equipment density within server racks. This is especially relevant for High-Performance Computing (HPC) and Edge Computing, where compactness and performance are crucial. However, high density creates a serious problem — effective heat dissipation.

Why Traditional Cooling is No Longer Enough

Standard cooling systems, designed for an entire data center room, often prove to be excessive and inefficient for cooling individual high-load racks. They consume a lot of energy cooling the entire volume of air, not just the critical zones. This leads to unnecessarily high operating costs and does not guarantee a stable temperature for the most powerful equipment.

The Stulz Solution: Pinpoint Efficiency with CyberRack SideCooler

Stulz, a global expert in cooling solutions, introduces an innovative product — the CyberRack SideCooler. It is a compact system that mounts directly to the side of a server rack and provides targeted cooling of the air inside it. Instead of cooling the entire room, the SideCooler creates an ideal microclimate where it is needed most.

Key Advantages of the CyberRack SideCooler

The new solution offers a number of significant benefits for modern IT infrastructure:

  • High Energy Efficiency: The use of modern EC fans and variable-speed compressors allows the system to adapt its cooling capacity to the current load, minimizing electricity consumption.
  • Impressive Power: Despite its compact size, the system can dissipate up to 12 kW of heat, making it ideal for high-density equipment racks.
  • Flexibility and Scalability: The CyberRack SideCooler can be used as a standalone solution for a single rack or integrated into larger cooling systems, ensuring scalability as your needs grow.
  • Space Saving: The side-mounted placement of the module saves valuable space in the rack and in the room itself, which is critical for small server rooms and Edge sites.

Who is this solution for

The Stulz CyberRack SideCooler is an ideal choice for small and medium-sized data centers, peripheral computing nodes (Edge computing), and any environment that requires powerful and cost-effective cooling for individual racks with a high thermal load.