D-Link 24-Port Rackmountable Gigabit Switch DGS-1024D

See detail @ http://www.amazon.com/gp/product/B0002TPFTA?&tag=externalharddrives0a-20 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 shutdown, switches often remain on and continue to consume considerable amount of power. With Green Ethernet 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.