Switch Industrial 4-Port 10/100/1000T 802.3at PoE+, 2-Port 100/1000X SFP Long Distance High Power PoE and Gigabit Data Extension Solution - an Industrial Gigabit 802.3at PoE+ Switch providing non-blocking wire-speed performance and great flexibility for Gigabit Ethernet extension in harsh industrial environment. It provides 4-port 10/100/1000Base-T copper with 802.3af/at PoE injector and 2 extra 100/1000Base-X SFP fiber optic interfaces delivered in an IP30 rugged strong case with redundant power system. The switch is well suited for applications in deploying surveillance system, and securing control and wireless service in climatically demanding environments with wide temperature range from -40 to 75 degrees C. Echipat cu module SFP. Redundancy Application. The Switch provides rapid fiber redundancy of link for highly critical Ethernet applications. The redundant-mode supports auto-recover function. If the destination port of a packet is link down, it forwards the packet to the other port of the backup pair. + HDD 4TB