features: 8 10/100/1000mbps auto-negotiation rj45 ports supporting auto-mdi/mdix ieee 802.3x flow control provides reliable data transfer steel housing, desktop or wall-mounting design supports qos (ieee 802.1p) function plug and play ,no configuration needed what this product does the tp-link 8 10/100/1000mbps desktop switch tl-sg108 provides you an easy way to make the transition to gigabit ethernet. increase the speed of your network server and backbone connections, or make gigabit to the desktop a reality. moreover, tl-sg108 adopts lower power consumption design. with the innovative energy-efficient technology, the tl-sg108 can save up to 72% of the power consumption, making it an eco-friendly solution for your home or office network. go green with your ethernet you now have the choice to go green when upgrading to a gigabit network! this new generation tl-sg108 features the latest innovative energy-efficient technologies that can greatly expand your network capacity with much less power. it automatically adjusts power consumption according to the link status and cable length to limit the carbon footprint of your network. power down idle ports: when a computer or network equipment is off, the corresponding port of a traditional switch will continue to consume considerable amounts of power. the tl-sg108 can automatically detect the link status of each port and reduce the power consumption of ports that are idle, resulting in up to an 72% reduction in power use. power budget according to cable length ideally, shorter cable would use less power because of less power degradation over their length this is not the case with most devices as they will use the same amount of power across the cable regardless of the length. hardware features: