UE300 ethernet is a USB 3.0 adapter

Description: Ethernet adapter for USB 3.0 UE300Featured features:- Extremely fast USB 3.0 port and gigabit Ethernet port for high data rates.- Simple Plug and Play installation for Windows (XP / Vista / 7/8 / 8.1), Mac OS X (10.9 / 10.10), Linux OS. Note: For Mac OS X (10.5-10.8), drivers are required.- The design allows the device to be folded and moved, making it ideally suited to your Ultrabook. | Type: LAN | Chipset type: RTL8153 | Interface: USB | I/O ports: 1 x 10/100/1000 Mbit/s | Operating frequency: Not applicable | Number of antennas: None | Antenna: Not applicable | Supported operating systems: Windows 8 | Supported operating systems: Windows 7 | Supported operating systems: Windows Vista | Supported operating systems: Windows XP | Supported operating systems: Mac OS | Supported operating systems: Linux | Accessories included: - Ethernet card for USB 3.0- Quick Installation Guide | Dimensions: 71 x 26 x 16,2mm