Faster and More Stable Network Connection Full 10/100/1000Mbps gigabit ethernet performance makes this USB to ethernet adapter faster and more reliable than most wireless connections. Link and Activity LEDs. USB powered. no external power required. Backward compatible with USB 2.0/1.1. Sleek Aluminum Ethernet Adapter The aluminum unibody case makes this USB RJ45 adapter stylish and good matcher for macbook. The aluminum network card is also anti-fingerprint and anti-corrosion. Protect. Replace or Add An Ethernet Port USB 3.0 Gigabit network adapter is a good accessory to protect or replace the RJ45 Lan port of your expensive computer. Simply adding a standard RJ45 port to your Ultrabook. notebook or Macbook Air for file transferring. video conferencing. gaming. and HD video streaming. Universal Compatibility This USB lan adapter works with Mac OSX 10.6/10.7/10.8/10.9/10.10/10.11/10.12. Linux kernel 3.x/2.6. and Chrome OS. Windows 10/8.1/8/7/Vista/XP. DO NOT SUPPORT Windows RT and An