This cost-optimized, 1U, Gigabit Ultra PoE Managed Switch featuring PLANET™ intelligent PoE functions to improve the availability of critical business applications. It provides IPv6/IPv4 dual stack management and built-in L2+/L4 Gigabit switching engine along with 24 10/100/1000BASE-T ports featuring 75-watt Ultra PoE, 4 Gigabit TP/SFP combo ports and 4 additional 10Gigabit SFP+ ports. With a total power budget of up to 400 watts for different kinds of PoE applications, the GS-5220-24UP4X and GS-5220-24UP4XR provide a quick, safe and cost-effective ultra PoE network solution for small businesses and enterprises. Redundant power source.