PROVIDE FAST ETHERNET SPEEDS: Connect your USB 3.0 enabled desktop, MacBook, notebook PC, or device at fast Gigabit speeds ADD, PROTECT & REPLACE AN RJ45 ETHERNET PORT: Quickly add a Gigabit Ethernet port to a Windows or Mac computer. A SuperSpeed USB 3.0 port supports Full Duplex 2 Gbps transfer speeds. The TU3-ETG is compatible with older USB 2.0 and 1.1 ports SUPPORTED OS AND COMPATABILITY: This USB Ethernet adapter is compatible with Windows 10, 8.1, 8, 7, Mac OS 10.15, 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6 PORTABLE COMPACT DESIGN: Take this USB to network converter anywhere with ease. Comes equipped with an attached flexible 12.7 cm (5 in.) USB cable that accommodates most installation scenarios