The Stonet ST3116P Fast Ethernet Rackmount Switch provides 16 10/100Mbps Auto-Negotiation RJ45 ports .It is ideal for the small and medium office use. All ports support Auto MDI/MDIX function, eliminating the need for crossover cables or uplink ports. The 16 Port Fast Ethernet Rackmount Switch provides you with high-performance, seamless and standard upgrade to improve your old network to a 100Mbps network.16 10/100Mbps RJ45 ports Supports MAC address self-learning and auto MDI/MDIX Green Ethernet technology link down power saving and link on various cable length power saving Supports Jumbo frame Supports 8K MAC address table 3.2 Gbps Switching Capacity Fanless design to make sure it works quietly without disturbing the department or office use Plug and play, no configuration required