StarTech.com Universal Laptop USB 2.0 Docking Station with Audio and Ethernet (USBDOCK2) Add multiple additional capabilities to a laptop/netbook with a single, convenient USB connection A small, light-weight design and no external power adapter required, making for an excellent portable accessory Backed by a StarTech.com 2-year warranty and free lifetime technical support 10/100Mbps Ethernet port, headphone and microphone audio support and 4-port USB hub Compliant with the USB 2.0 standard, for data transfer rates up to 480Mbps Powered directly from the USB port, but includes optional power adapter Backward compatible with USB 1.0/1.1 Compact, light-weight design