Keri Systems KB-4D-CTL Borealis KB Cloud Access 4-Door Controller

Optimize site security and simplify network integration with the Keri Systems KB-4D-CTL Borealis KB Cloud Access 4-Door Controller. Built for integrators and IT teams, this access control panel delivers fast cloud-hosted management while minimizing on-premise bandwidth use through intelligent edge decision-making. The 4-door/4-reader design and on-board TCP/IP connectivity let you deploy using existing LAN/WAN infrastructure or a dedicated CAT-5/6 run—reducing additional network adapters and setup steps.

Designed for real-world deployments, the controller supports up to 10,000 cardholders and stores a 10,000-event buffer for reliable monitoring and audit trails. Expand system capabilities with up to four NXT-4x4 input/output boards per RS-485 trunk, and secure the unit in a locking metal enclosure with quick-disconnect connectors for fast serviceability. Installers benefit from QR Code controller enrollment and the Borealis Connect App for streamlined commissioning.

Ideal for commercial buildings, campuses, and multi-site enterprises seeking scalable cloud access control, this Keri Systems controller enhances physical security, surveillance integration, and networked monitoring. Contact your reseller or order now to integrate the KB-4D-CTL into your next secure access deployment.

• Fast cloud onboarding with Borealis Connect App and QR Code Scan & Go to reduce installation time and commissioning costs
• 4-door / 4-reader controller with on-board TCP/IP for simplified networking and fewer hardware dependencies
• Edge intelligence that makes local access decisions to conserve bandwidth and maintain security during network interruptions
• Scalable capacity: supports up to 10,000 cardholders and a 10,000 event buffer for enterprise-grade monitoring and reporting
• Expandable I/O with up to four NXT-4x4 boards per RS-485 trunk and fits in a locking metal enclosure for secure deployments