Keri Systems KB-4D-ADD-KIT Borealis KB Cloud Access Controller 4-Door Expansion Kit

Designed to make cloud-hosted access control practical and reliable for commercial sites, the Keri Systems Borealis KB Cloud Access Controller 4-Door Expansion Kit delivers a turnkey solution for security-conscious organizations. This 4-door access control panel kit includes on-board TCP/IP connectivity so you can use existing LAN/WAN Ethernet without extra adapters, while intelligent local processing reduces network traffic and preserves bandwidth for critical surveillance and monitoring systems. The controller supports up to 10,000 cardholders and a 10,000-event buffer, giving administrators robust capacity for auditing and incident response. Expandability is built in: add up to four NXT-4x4 I/O boards per RS-485 trunk to scale inputs and outputs across multi-door deployments. Installation is simplified with QR code controller enrollment via the Borealis Connect app and quick-disconnect connectors, and the unit mounts in a locking metal enclosure for physical security. Ideal for corporate campuses, healthcare, education, and multi-tenant properties that require reliable access control, cloud backup, and centralized monitoring. Upgrade your security architecture with this scalable Keri Systems access control panel kit—contact your reseller or add to cart to start deploying.

• Simplifies cloud migration: quick QR-code enrollment with the Borealis Connect app speeds deployment and reduces install time.
• Conserves network bandwidth: intelligent on-board decision-making and embedded TCP/IP minimize reliance on continuous cloud traffic.
• Scalable 4-door control: native 4-door/4-reader support with capacity to add NXT-4x4 I/O boards on RS-485 trunks for expanded sites.
• Enterprise-grade capacity: supports up to 10,000 cardholders and a 10,000-event buffer to meet demanding monitoring and auditing needs.
• Secure, tamper-resistant installation: fits in a locking metal enclosure with quick-disconnect connectors for faster maintenance.