The 4-Port Gigabit Ethernet PoE+ Industrial Switch with 2 SFP Ports from Intellinet Network Solutions was designed to give you the network connections and device power you need in places that are less than calm or temperate. With a rugged, IP40-rated metal case it operates reliably and quietly, even in extreme temperatures that range from -40 to 167°F (-40 – 75℃). In combination with its DIN-rail mounting option and two safe redundant DC power inputs with power failure alarm and plenty of other safety features, this switch is ideal for IoT applications in Industry 4.0 and more.