KDLINKS U3HN1 3 Port USB 3.0 Hub with RJ45 10/100/1000 Gigabit LAN Port USB Network Adapter for Surface Pro, Windows OS - Black USB 3.0 transfer rates up to 5Gbps, 10 times faster than USB 2.0, backwards compatible with USB 2.0 / 1.1 Instantly add 3 x Super-speed USB 3.0 ports and 1 x RJ45 Gigabit Ethernet port to your ultrabooks and notebooks, provide 10 x faster transfer speed than USB 2.0., also backwards compatible with USB 2.0/1.1 and support all USB devices such as card reader, flash drive, hard drive, etc. Use it to replace your broken internal network port on desktop and laptop, add a separately-routable network interface, and transferring files at superfast speed over an Ethernet port. Supports 10/100/1000 Gigabyte Ethernet, full duplex operation with IEEE 802.3x flow control (FDX) and half duplex (HDX) operation with back-pressure flow control. Supports crossover detection and auto-correction and Wake-on-LAN (WOL) via link-change, Magic Packet, Microsoft wakeup frame LED indicator for power and Ethernet connection, USB bus powered Compatible with: Windows XP, Vista, 7, 8 / Mac / Linux