5 high-speed Fast Ethernet ports Plug and play technology for simple setup IEEE 802.3x flow control, RoHs compliant to enhance network reliability Innovative D-Link Green energy saving features Compact design for convenient placement Fanless design for silent operation Effortless High Speed Networking The DES-1005E features easy access, auto sensing 10/100 Mbps Ethernet ports with an LED indicator for each port to quickly distinguish link status and activity. The DES-1005E switch also supports Auto MDI/MDIX Crossover allowing each port to be plugged directly to a server, hub, router, or switch using regular straight-through twisted-pair Ethernet cables to get you the maximum speed possible for each device connected to your network.