The DES-15D 5-Port Fast Ethernet Unmanaged Desktop Switch is a five port fast Ethernet switch that allows you to quickly set up a wired network. Connect the DES-15D to multiple computers together to share files and folders, or connect it to a router to share an Internet connection. Auto-Sensing 1/1 Ports The DES-15D 5-Port Fast Ethernet Unmanaged Desktop Switch uses auto-sensing 1/1 Mbps ports, allowing a small workgroup to flexibly connect to Ethernet and Fast Ethernet devices to create an integrated network. These ports detect the network speed and auto-negotiate between 1BASE-T and 1BASE-TX, as well as between full and 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 82.3x flow control on each port minimizes dropped packets when the port’s receiving buffer is full. This gives you a more reliable connection for all of your connected devices.