The SGD105 desktop Switch provides 5 10/100/1000Mbps Auto-Negotiation RJ45 ports. All RJ45 ports support the Auto-MDI/MDIX function. Every port can works as uplink port or common port.SGD105 provides a cost-effective, high performance, non-disruptive, smooth evolution into 1000M solutions. The Switch delivers superior performance with improving workgroup, network bandwidth, increasing network node, providing greater flexibility, installation convenience. It is the best choice for increasing your speed.