The TU2-ET100 is a high-speed USB 2.0 to Fast Ethernet adapter that allows you to easily connect to a 10/100 Mbps network from a USB enabled desktop, MacBook, ChromeBook, or notebook PC. Compliant with USB 2.0 and backwards compatible with the USB 1.1 and 1.0, you can share files and printers and gain access to broadband Internet.