UGREEN USB 3.0 Hub with RJ45 Gigabit Ethernet Adapter 3 Port USB Network Converter 10/100/1000Mbps for Windows 10/8.1/8/7, XP, Vista, Mac OS X and Linux DUAL FUNCTIONS: Expand your PC with three USB 3.0 ports and one RJ45 Gigabit 1000Mbps ethernet port, especially a flexible solution for Ultrabooks, notebooks and tablets featuring USB interfaces such as Windows Surface Pro,IdeaPaD, MacBook Air, MacBook Retina, etc. DATA UP TO 5Gbps: 3 port Super Speed USB 3.0 hub, Support data transfer rates of up to 5Gbps. Backward compatible with USB 2.0 / 1.1 GREAT COMPATIBILITY: Compatible with IEEE 802.3, 802.3u and 802.3ab (10BASE-T, 100BASE-TX, and 1000BASE-T) DC-Jack designed for some power hungry devices. Chipset ASIX AX88179 LIFETIME WARRANTY: Ugreen 3-Port USB Gigabit Ethernet Lan Network Adapter is backed with lifetime warranty and customer service support.