HP 3100 EI series switches are Layer 2 Ethernet switches designed for enterprise networks demanding high security and intelligence. They provide 10/100 Mbps downlink and 1000 Mbps uplink Ethernet ports,and serve as access devices for 100 Mbps-to-desktop applications in enterprise networks. In metropolitan area networks or various industry networks,they connect end users or aggregate client devices with 10/100 Mbps connections,converging at a higher-capacity switch with 1000 Mbps interfaces.