Special Features: 10 Gigabit RJ45 ports (8x 802.3bt PoE++ and 2x standard); Internal AC/DC power supply with 450W DC output; Operating temperature: -40 to 60°C (-40 to 140°F); Enclosure: Die-cast aluminum with black powder-coated finish; ESD/EMP protection: ±24kV air/contact; Fanless design for silent operation