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