Gigabit Ethernet switch expands network in an instant ; Green Ethernet power-saving technology deactivates unused ports ; Supports any combination of 10Mbps, 100Mbps or 1Gbps network devices ; Store & forward switching architecture ; Five 10/100/1,000 auto-sensing ports automatically detect optimal network speeds ; Compatible with all Windows(R) & Mac(R) systems; Plug & play ; 3-year warranty;