The DES-1005D 5-Port Fast Ethernet Unmanaged Desktop Switch is a five port fast Ethernet switch that means that you can quickly set up a wired network. Connect the DES-1005D to multiple computers together to share files & folders, or connect it to a router to share an Internet connection. No configuration is required, making this switch completely plug-&-play. ** Auto-Sensing 10/100 Ports** The DES-1005D 5-Port Fast Ethernet Unmanaged Desktop Switch uses auto-sensing 10/100 Mbps ports, allowing a small workgroup to flexibly connect to Ethernet & Fast Ethernet devices to create an integrated network. These ports detect the network speed & auto-negotiate between 10BASE-T & 100BASE-TX, as well as between full & half-duplex, allowing you to get the maximum speed possible for each device connected to your network. ** Auto MDI/MDIX Crossover** All ports support automatic MDI/MDIX crossover, eliminating the need for crossover cables or uplink ports. Each port can be plugged directly to a server, hub, router, or switch using regular straight-through twisted-pair Ethernet cables. ** Flow Control for Secure Transmission** 802.3x flow control on each port minimizes dropped packets when the ports receiving buffer is full. This gives you a more reliable connection for all of your connected devices.