Features: 100% brand new and in high quality. It is appliable to desktop, notebook, laptop, ultrabook and so on. You need to install the driver before using and we have the CD driver to help you. The max theoretical transmission speed is up to 5Gbps. 3 super speed USB 3.0 ports allows you to connect a variety of USB devices with your computer which makes your work more efficient. 3 ports of USB 3.0 external hub with a RJ45 gigabit ether-net LAN wired adapter can work at the same time. It is really practical, high-performance, safe and stable! The pure black design can make you match it with different colors casually and conforms to the atmosphere of business office. Perfectly support for Mac OS/Linux/Vista/forwindows 7/8 and other higher systems. Package include 1 × 3 Port USB 3.0 Hub With 1 RJ45 Gigabit Ethernet LAN Wired Adapter 1 × CD Driver