Zone Wing is an intelligent control device and network communication hub. Running on a Linux-based platform, it provides the storage, processing power and programmability needed for modern, key-based security. Zone Wing directly manages and executes user access rights for multiple Zone Door controllers. It also relays all messages, alarm signals and logs between the host and the points of access. It manages the resident profile database and event logs, assuring maximum autonomy should the system go offline. Two general-purpose USB ports can be used to extend the access control system with additional storage, WiFi or mobile-network connectivity. The primary host connectivity is provided via an Ethernet port.