Allied Telesis CentreCOM GS970EMX/20 Ethernet Switch - 18 Ports - Manageable - Gigabit Ethernet, 2.5 Gigabit Ethernet, 5 Gigabit Ethernet, 10 Gigabit Ethernet - 10/100/1000Base-T, 2.5GBase-T, 5GBase-T, 10GBase-T, 1000Base-X, 10GBase-X - 3 Layer Supported - 28 W Power Consumption - Optical Fiber, Twisted Pair - Rack-mountable, Compact, Desktop: