The D-Link DUB-E100 is a Hi-Speed USB 2.0 10/100Mbps Fast Ethernet Adapter specifically designed to plug into an available Universal Serial Bus (USB) port on a desktop or laptop PC running Microsoft Windows XP, Me, 2000 or 98. Based on USB 2.0, the DUB-E100 extends the transfer speed of earlier USB Fast Ethernet adapters to true 10/100Mbps connectivity. As a USB device, the D-Link DUB-E100 eliminates the need to use an ISA, PCI, or PC Card slot to add LAN connectivity to a PC desktop or laptop computer. Installation and use are further simplified by living up to USB's out-of-the-box installation approach to connecting computer peripherals. You will not need to open the case of your computer, nor will you be required to set IRQ's. The D-Link DUB-E100 represents the simplest way to connect your computer to an Ethernet based network.