The Linksys SLM224G4PS Smart Switch brings a whole new level of intelligence and security to the network infrastructure at a cost-effective price. It offers 48 10/100 Ethernet (copper) ports with four 10/100/1000 Gigabit Ethernet copper or optional optical (SFP) interfaces for uplinking to core network or servers. The SLM224G4PS is able to secure the network through 802.1X port authentication and MAC Filtering. 802.1X requires clients to authenticate themselves before the port will pass data and allow a user to access the network. The SLM224G4PS switches provide resilient stacking for up to 8 switch units. The switch stack will then function as a single unit, with one IP address, and can be managed from a one Web Management interface. The advantage of a stacking architecture is that it makes it easier for users to manage, configure, and perform tasks such as switch firmware updates on the nework. SLM224G4PS can coexist in a stack with other Linksys Smart Stackable PoE, 24 and 48-port versions - SLM224G4S, SLM248G4S, and SLM248G4PS. The SLM224G4PS supports the IEEE802.3af standard for Power over Ethernet (PoE). It enables POE-enabled devices such as IP cameras, IP phones, and Wireless Access Points to be positioned in optimal locations like in ceilings and walls - even outdoors - and in locations where there is a an accessible power outlet, thereby reducing installation costs making installations easier. A simplified user interface provides an intuitive, secure management platform enabling admins to better utilize the comprehensive feature-set of the switch, resulting in a better optimized, more secure network.