The Netis ST3105GM Unmanaged 5 Port Gigabit Switch provides Auto Negotiation on all 5 RJ45 Ports. All ports support Auto MDI/MDIX function, eliminating the need for crossover cables or uplink ports. Together with the plugandplay & Green Power feature, it will provide you with a low-cost, easytouse, high-performance, seamless and standard upgrade to improve your old network to a Gigabit Network. The switch is enclosed into a metal housing for rough industrial environments