Cable Matters USB to Ethernet Adapter (USB 3.0 to Ethernet / USB 3 to Ethernet / USB to Gigabit Ethernet / USB to RJ45) Supporting 10 / 100 / 1000 Mbps Ethernet Network in Black Usb 3.0 to Gigabit Ethernet Adapter adds network connectivity to a computer with a USB 3.0 port; supports SuperSpeed USB 3.0 data transfer rate up to 5 Gaps for 1000 Base-T network performance with backwards compatibility to 10/100 Mbps networks;connect with a cat 6 ethernet cable (sold separately) for the best performance Wireless alternative for connecting to the Internet in Wi-Fi dead zones, streaming large video files, or downloading a software upgrade through a wired home or office LAN; USB 3.0 to Ethernet adapter provides faster data transfers and better security than most wireless connections; ideal solution for replacing a failed network card or upgrading the bandwidth of an older computer Driver-free installation with native driver support in Chrome, Mac, and Windows OS; network adapter dongle supports important performance features including wake-on-lan (WOL), full-duplex (FDX) and half-duplex (HDX) Ethernet, Crossover detection, backpressure routing, auto-correction (auto MDIX) Lightweight USB to Ethernet adapter weighs less than 1 ounce for easy portability in your laptop case; add a standard RJ45 port to your Ultra Book or MacBook with a USB 3.0 port for file transfers, video steaming and gaming Chrome & Mac & Windows compatible with Windows 10/8/8.1/7/Vista and Mac 10.6/10.7/10.8/10.9/10.10/10.11/10.12; does not support Windows RT or Android