The ThinkPad USB 3.0 Ethernet adapter enables Ethernet on systems which do not have Ethernet RJ-45 connector through USB port on the system. The ThinkPad USB 3.0 Ethernet adapter not only provides high speed Gigabit Ethernet solution via USB 3.0 port, but also enables boot over the LAN on selected ThinkPad systems. Connect it with your ultrabook or tablet to your corporate VPN at the office or go online in a hotel suite. The adapter's small form factor allows a convenient fit into any computer case or bag to travel, so you can easily take it with you anywhere.
Lenovo ThinkPad USB 3.0 Ethernet adapter - network adapter