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

Cloud-hosted access control solution designed for streamlined deployment and cost efficiency. This 4-door controller features built-in Ethernet connectivity with intelligent processing that minimizes bandwidth consumption. Supports up to 10,000 cardholders and maintains a 10,000-event buffer for comprehensive audit trails. Key capabilities include QR code enrollment, scan-and-go functionality, and re-assignable inputs and outputs for flexible configuration. Expandable via RS-485 trunks to accommodate up to four 4x4 I/O boards for enhanced system capacity. Includes quick disconnect connectors for simplified installation and maintenance. Built-in TCP/IP connectivity eliminates the need for separate network adapters. Works with existing LAN/WAN infrastructure or dedicated CAT-5/6 cabling. Embedded MAC address enables straightforward controller importing. Compact design fits standard locking metal enclosures. Supports 10,000 cardholders and event logging. Ideal for organizations seeking secure, scalable access control with cloud-based management and backup.