Portable 3-Port USB 3.0 Hub with Gigabit Ethernet AdapterUGREEN 3-Port SuperSpeed USB 3.0 Hub with RJ45 Gigabit Ethernet Adapter not only add a Gigabit RJ45 Network connector to your your PC or Mac through a single a USB 3.0/ 2.0 port , but also add 3 more SuperSpeed USB 3.0 ports.You don't have to constantly switch and unplug everything, which is good to protect the USB and Ethernet interfaces on your devices. It also can be used to replace a failed network card or a wireless network with a faster USB 3.0 Gigabit Ethernet network.SuperSpeed USB Multi-port HubWith data transfer rates of up to 5Gbps,10x faster than USB 2.0, you'll be able to sync files and interact with your Mac or PC more efficiently than ever.Gigabit USB to RJ45 Ethernet AdaptorSupports up to 1000Mbps and downwards compatible with 10/100MbpsEasy to UseCompact but powerful. The USB hub supports hot swapping, plug and play. A built-in surge protector will keep your devices safe, while complete backwards compatibility with all generations of USB will ensure that all of your existing USB devices work seamlessly.Wider Compatibility Windows (32/64 bit)10/ 8.1 / 8 / 7 / Vista / XP, Mac OS X 10.6 to 10.14, Linux 2.6.14 or above, Surface Pro, Xiaomi Mi Box etc.For RJ45 Ethernet port, a driver needs to be manually installed to enable ethernet connection, except Windows 10/8. No drivers required for USB 3.0 data ports on all compatible systems. We recommend downloading the latest driver batch from our Ugreen website or contacting our customer support regarding this issue.Warm Reminder For stable operation, devices connected to this hub should not exceed a combined current of 5V 900mAh. When using with high power devices, like external HDD,SDD, a DC 5V power plug should be used to supply power to the USB hub. And DC 5V power adapter is not included.