Features: Powered by 802.3bt (PoE++) switch Three 802.3af PoE ports for UniFi readers and G3 Flex surveillance camera 12V powered and dry relays compatible with most locks Four inputs for motion sensors, request-to-exit devices and door position switch Managed with UniFi Access Application in UDM-Pro DIN-rail mounting UA-Hub Dimensions 190 x 126 x 33 mm (7.48 x 4.96 x 1.29") Weight 457 g (16.12 oz) Enclosure Characteristics Plastic Enclosure with Metal Mount Plate Mounting Options DIN Rail Networking Interface (4) 1 Gbps Ethernet Max. Power Consumption 40W Power Method 802.3bt PoE Input Terminals REX - Request to Exit REN - Request to Enter REL - Remote Release DPS - Door Position Sensor Dry Output Relay Lock Aux Rated 30VDC, up to 1A Rated 30VDC, up to 1A Powered Output Relay Lock Aux Line 12VDC, up to 1A 12VDC, up to 0.33A 12VDC, up to 0.33A LEDs (1) System, (3) PoE Out, (4) Input (2) Output Relays, (1) 12VDC Out Buttons Terminal Blocks, Reset Operating Temperature 0 to 40° C (32 to 104° F) Operating Humidity 5 - 90% Noncondensing Certifications CE, FCC, IC