A guide to cabinet-level access control in data centers

When discussing data center physical security, most integrators and customers focus on perimeter fencing, biometric entry points, and server room surveillance.
 
But as colocation and hyperscale data centers continue to grow, attention is turning to the often-overlooked final layer of defense: cabinet-level security.

Why cabinet-level security matters 

Cabinet-level security refers to locking mechanisms and access control installed directly on server racks and enclosures-protecting the hardware that stores critical data.
 
This layer is especially vital in shared facilities, where multiple clients’ servers may be housed side-by-side. Without proper access controls at the rack level, even a minor breach inside a secure room could lead to data theft, damage, or compliance violations.

Technology overview: Smarter locks for smarter data centers

A new generation of electronic locking solutions offers fine-grained cabinet-level control-fully compatible with centralized DCIM systems and modern access technologies. We take a look at some of the most popular solution providers in this sphere and what they offer. Please note this list is not comprehensive. 

Salto Systems – Rack-level Access Control

1. Salto offers an electronic locking solution specifically developed for server and data center racks, allowing administrators to control and audit access to individual cabinets.
2. These locks are compact, electronic swing handles that can be easily integrated into existing racks. They are compatible with Salto’s XS4 platform, which provides real-time access control, remote opening, and audit trails.
3. Credentials can be managed via smart cards or mobile access (BLE/NFC), ensuring that only authorized personnel can access specific cabinets.
4. This system is ideal for colocation environments where tenant separation and access tracking are critical for compliance and accountability.

ASSA ABLOY – HES KS200 Series Cabinet Locks 

1. The HES KS200 Series by ASSA ABLOY is a high-security electronic cabinet lock designed to secure standard swing-handle server cabinet doors in data centers.
2. It comes standard with lock status monitoring and features an SFIC mechanical key override for physical backup. An optional door position sensor can also be added to verify whether the cabinet is securely closed.
3. The KS200 is available with Wiegand or Open Supervised Device Protocol (OSDP) and features HID multiCLASS SE contactless card technology for credential authentication.
4. These locks are hard-powered and integrate with enterprise access control systems, making them suitable for mission-critical environments where rack-level security and auditability are essential. 

EMKA – Server Rack Locking Systems

1. EMKA offers a comprehensive range of locking solutions specifically designed for server and network racks in data centers. Their cabinet locking systems ensure controlled access to sensitive IT infrastructure, supporting both mechanical and electronic access mechanisms.
2. Their Agent E swing handle series includes options for electromechanical locking with RFID or biometric access, suitable for integration into centralized control and monitoring systems.
3. The eCam electromechanical cam lock enables secure, remote-controlled locking in 19" racks, particularly for colocation or edge environments where individual compartment security is critical.
4. EMKA’s systems also support integration into access management and environmental monitoring platforms, enabling real-time audit trails and alerting in the event of unauthorized access attempts or temperature anomalies. 

Southco – Rack-Level Security Systems

1. Southco’s rack-level security solutions focus on protecting data center equipment with electronic locking systems that ensure access is both controlled and traceable.
2. The company emphasizes key design considerations such as separation of security and access management, enabling independent auditing and compliance.
3. Their electronic access systems include options for centralized credential management, remote lock/unlock capabilities, and integration into larger building or data center infrastructure.
4. These solutions are engineered for retrofit compatibility and support rapid deployment in colocation and enterprise environments.

Vertiv – Rack and Containment Solutions 

1. Vertiv provides a portfolio of rack and containment systems that support physical infrastructure protection in high-density and mission-critical data center environments.
2. While their focus is on rack architecture and airflow containment, select enclosures are compatible with third-party electronic locking systems to support secure cabinet-level access.
3. Vertiv’s integrated solutions, such as the VR Series racks, are engineered for flexibility, high load capacity, and cable management, and are often paired with environmental monitoring for thermal and physical security assurance.

Each of these solutions reflects the latest in cabinet-level security: whether it's battery-free NFC power, cloud-managed access, or advanced biometric controls.
They offer multiple deployment strategies-from retrofits to fully networked implementations-helping Asian data centers secure their final layer of defense.

What to consider when choosing cabinet-level security

For systems integrators, key considerations include:

1. Compliance and auditing: Many regional regulations increasingly require granular logging of physical access to sensitive equipment, particularly in financial, healthcare, and government sectors.
2. Integration capabilities: The best cabinet locks now support open standards like OSDP and SNMP, allowing for seamless connection to DCIM (Data Center Infrastructure Management) platforms.
3. Operational scalability: In large or colocation data centers, systems that enable mobile or centralized credential management reduce complexity and human error.
4. Retrofit flexibility: Products like Salto’s electronic swing handles simplify upgrades without needing full cabinet replacements. 

Design considerations for cabinet-level access control 

While choosing cabinet-level security solutions, integrators and end users must evaluate not only technical compatibility but also how these systems impact long-term operations and compliance.
 

1. Authentication methods: Look for products that support multi-factor authentication-such as RFID plus PIN, or biometric plus mobile credentials-to strengthen access verification. 
2. Power and network requirements: Hardwired solutions like the KS200 offer real-time monitoring but require dedicated power and cabling. Wireless or battery-powered locks offer deployment flexibility, particularly in retrofit scenarios.
3. Audit trail visibility: The ability to generate access logs is key for post-incident investigations and compliance audits. Many modern cabinet locks integrate directly with enterprise access control or DCIM platforms to offer this capability.
4. Environmental resilience: Data center racks often operate in thermally and electromagnetically demanding environments. Locking systems should meet IP and EMI standards to ensure durability.
5. Vendor support and interoperability: Evaluate the ecosystem each product fits into-whether it supports standard protocols (e.g., OSDP, Wiegand) and whether the manufacturer provides ongoing firmware updates and integration support.

Use cases and deployment strategies

Cabinet-level access control solutions are gaining momentum as part of broader efforts to modernize and secure physical infrastructure in data centers. Their implementation varies across different types of facilities, each with unique security and operational needs.

1. Colocation data centers: These facilities, which house equipment from multiple clients, have the most urgent need for individual cabinet security. Electronic swing handles with remote access logging and compartmentalized authentication help enforce tenant separation and reduce liability for the operator. In such environments, systems that can be quickly reprogrammed to onboard or offboard tenants are preferred. 
2. Enterprise data centers: Larger companies running their own data centers typically prioritize seamless integration with corporate security systems. Cabinet locks that can communicate with existing access control and identity management platforms help enforce uniform policies across both IT and physical environments. For example, if an employee’s credentials are revoked, they should automatically lose access to all cabinets, not just doors or networks.
3. Edge data centers and micro data centers: Often deployed in remote or unattended locations, edge environments pose different challenges. Compact, battery-powered cabinet locks with mobile access (via BLE or NFC) are well-suited here. They allow centralized control and monitoring without the need for local staff, while ensuring that only authorized personnel gain entry during scheduled visits.
4. High-security verticals: In sectors such as finance, defense, and healthcare, regulations often mandate strict audit trails and multi-factor authentication for physical access. Here, biometric-enabled cabinet locks or dual-authentication swing handles (e.g., RFID plus PIN) help meet these stringent standards. Integration with environmental monitoring systems is also common, enabling alerts not only for unauthorized access but for changes in humidity, vibration, or temperature.

Regardless of facility type, successful deployment depends on choosing a lock solution that balances security, usability, and integration. Systems integrators play a key role in evaluating client needs, specifying hardware, and ensuring smooth integration into broader facility operations.

Final thoughts 

Cabinet-level security is no longer a niche concern-it’s a frontline defense in modern data center design. As hyperscale and multi-tenant facilities expand across Asia, investing in intelligent, integrated cabinet locks is a proactive step toward reducing insider threats, improving audit readiness, and aligning physical infrastructure with today’s cybersecurity demands.
 
For security integrators, understanding what’s available-and how it fits into broader access strategies-is key to delivering future-ready solutions.