Data Center Cage: Definition

A data center cage refers to a secure, private enclosure built inside a data center to host the IT equipment of a single organization. It is typically enclosed by wire mesh panels, equipped with lockable doors, and protected by access control devices.

This solution allows companies to physically isolate multiple racks while maintaining the benefits of a shared infrastructure: power supply, cooling, connectivity, monitoring, and technical resources. While a standard colocation rack holds a limited volume of equipment, a cage provides a much larger dedicated space.

Why Use a Cage in a Data Center?

Colocation cages are primarily intended for organizations hosting critical applications, sensitive data, or infrastructures subject to strict security and compliance standards, such as HDS or ISO 27001 certifications.

A cage provides key benefits, including:

• Access control reserved exclusively for authorized personnel;

• Secure doors with locks or authentication systems;

• Mesh panels facilitating equipment ventilation;

• Physical partitioning of infrastructures;

• Full traceability of maintenance and interventions on equipment.

This setup is particularly appealing to IT teams needing to combine security, scalability, and full control over their hosting environment.

Data Center Cage vs. Colocation Rack: What Are the Differences?

A standard colocation rack is generally suitable for companies hosting a few items of equipment in a single secure cabinet. The choice therefore depends on total equipment volume, required security levels, and infrastructure growth prospects. For an organization anticipating growth, handling sensitive data, or wishing to isolate its equipment within a dedicated space, a cage represents a more structured option than an isolated rack.

With its network of over 250 Edge data centers in France—including 7 hyperconnected IX data centers in Aubervilliers, Bordeaux, Courbevoie, Lille, Lyon, Rennes, and Strasbourg—UltraEdge supports businesses in selecting colocation solutions tailored to their technical, security, and availability needs.