The USB2100 USB 2.0 to 10/100 Mbps Network Adapter lets you add a Fast Ethernet port to your laptop or desktop computer through USB.This compact USB network adapter offers a dongle design with a built-in cable to avoid cramped connections making it a perfect solution for adding wired Ethernet connectivity to your desktop without opening the case or to replace a failed onboard network adapter on your laptop system.Providing half or full-duplex operation this USB 2.0 Ethernet adapter supports data transfer rates of up to 200 Mbps. The adapter also supports features such as Wake-on-LAN (WoL) and VLAN tagging for added flexibility.Backed by a StarTech.com 2-year warranty and free lifetime technical support.The StarTech.com Advantage- Avoid crowded connections with the integrated USB cable- Take the adapter anywhere with a portable USB-powered design