Ports – 48 10/100/1000 Mbps auto-sensing Gigabit-Ethernet switching ports, and four dedicated 1000M SFP fiber ports. Network & Communications – Static routing, Comprehensive IPv6 supporting management, QoS and ACL and more. Quality of Service (QoS) – Advanced QoS with IPv4/IPv6 ingress traffic filtering (ACLs) and prioritization (QoSDiff Serv). VLAN – Dynamic VLAN assignment for easy user authentication and location-independant access to network. Warranty – Lifetime warranty and 1-year Free Advanced Tech Support for peace-of-mind.