This is a refurbished product.Cisco 870 Series of integrated services routers are fixed-configuration routers that support multiple types of DSL technologies, broadband cable, and Metro Ethernet connections in small offices. They provide the performance needed to run concurrent services, including firewall, intrusion prevention, and encryption for VPNs, optional 802.11b/g for WLAN networking, and quality of service (QoS) features for optimizing voice and video applications. In addition, the Cisco Router and Security Device Manager (SDM) Web-based configuration tool simplifies setup and deployment, and centralized management capabilities give network managers visibility and control of the network configurations at the remote site.