This desktop switch is designed for small offices and larger workgroups. All ports auto-sense the network speed of the computers and hubs to run at either 10Mbps or 100Mbps. The ports also auto-negotiate between full and half duplex and support flow control. Expansion is easy through a MDI uplink port. You cascade several switches together through this port to get more ports. IEEE 802.3x Flow Control allows your servers to directly connect to this switch for fast, reliable data transfer. Computers do not require Internet access all the time; neither do switches utilize all ports at all times. When a computer or network equipment is shut down, switches often remain on and continue to consume considerable amounts of power. With D-Link Green Technology, D-Link switches can automatically detect link status and reduce power usage of ports that are idle. Computers or any connecting parties set to standby mode (not power off), however, will not provide significant power savings. D-Link Green verified switches have the ability to analyze the length of any Ethernet cable connected to them for adjustment of power usage accordingly. Shorter lengths require less power.