Download the latest drivers from the StarTech.com website at www.startech.com/Support. The part number and product ID are on the product packaging.
Note: Mac OS X usually saves the files to the Downloads folder that is associated with your user account and is located on the drive where Mac OS X is installed (for example, Macintosh HD\\Users\\your_name\\Downloads).
Double-click the [ASIX88179] Mac USB Network Adapter.zip file.
Press and hold the Control key and click the dmg file.
To mount a drive on the desktop, click Open.
Double-click the drive that you just mounted on the desktop.
Press and hold the Control key and click the setup file.
Click Open.
Complete the instructions to install the device drivers, and restart your computer when prompted to.
After your computer restarts, connect the device to your computer.