Ubiquiti's UA-HUB-DOOR is a compact, indoor, access control hub which provides access control for a single door. It features 1x 802.3at PoE input and 4x Gigabit Ethernet Ports with PoE out. The hub also has 4x input terminals (2x door exit requests, 1x door position and 1x emergency), all of which can be unlocked using an NFC card or UniFi Identity Endpoint Mobile App.