Ubiquiti's UniFi UA-HUB-DOOR represents the next-generation of Ubiquiti's smart access control hardware, marking a replacement for the UA-HUB. The UA-HUB-DOOR features an extra RJ45 port to support an additional reader interface, or for optional devices such as an additional camera to provide additional security for the door or a UniFi Protect Chime to act as a doorbell. The UA-HUB-DOOR also features 4 x inputs for push buttons, motion sensors, door position sensors and emergency alarms, as well as 2 x AUX output relays allowing the connection of automatic door openers or external sirens in case of fire or emergency. Two lock relays are also embedded to support locks like Ubiquiti's Fail-Safe Magnetic Lock, as well as a DIN-rail to mount the UA-HUB-DOOR in the building's junction box to save space. Please note: either a UniFi Dream Machine PRO or a UniFI Cloud Key Plus is required to run UniFi Access (sold separately).