D-Link DGS-1005D, 5-port, Gigabit

In addition, the switch can adjust the power consumption by sensing the current Ethernet cable length, thus saving any excess power that would otherwise disappear as heat. These two functions together can save up to 27% of the power used by the switch (the figure is based on a scenario that assumes that computers are used for 10 hours a day, turned off 14 hours a day and connected to the switch with 20m cable. This function allows the data flow to be adjusted between switch and server, to ensure a reliable data transfer. At 2000 Mbps full duplex, the switch provides high speed to your servers with the least possible packet loss. All ports support automatic negotiation for MDI / MDIX cross over. This eliminates the need for crossed cables and uplink port. Each port can be easily connected to a server, hub or switch, with standard "straight" cables