TP-LINK TL-SG105, Interface 5 10/100/1000Mbps, Auto-Negotiation, Auto-MDI/MDIX Ports, External Power Adapter (Output: 5VDC / 0.6A), System Power Link/Act indicators per port built into each RJ-45 port, Max Power Consumption 2.3W, Max Heat Dissipation 7.8 BTU/h, MAC Address Table 2K. The TL-SG105 Desktop Switch provides you an easy way to increase the speed of your network server and backbone connections. Whether you are at home or in the office, the TL-SG105 can always help you deal with your business quickly and easily.