This is a cost-optimized, high-density PoE+ Managed Gigabit Ethernet 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 48 10/100/1000BASE-T ports featuring 36-watt 802.3at PoE+ and 4 additional Gigabit SFP slots. With a total power budget of up to 400 watts for different kinds of PoE applications, it provides a quick, safe and cost-effective Power over Ethernet network solution for small businesses and enterprises.