Mac OS X 10.1 This is the Mac OS X beta driver for 10/100M PCI Fast Ethernet Adapter. This beta driver is for Mac OS X 10.1 or newer versions.If your Mac OS X is 10.0.4, please download the driver for Mac OS X 10.0.4 from http://www.realtek.com.tw Please follow the following instructions to install the driver: 1. Decompress the rtl8139.tar with the "tar" command in Mac OS X. tar -xvf rtl8139.tar Then the rtl8139.pkg folder containing the driver package will be created. 2. The rtl8139.pkg folder is shown as a single item in the Finder window. Please double click the rtl8139.pkg item, then the installer will be launched. Please follow the installer instructions to finish the driver installation.Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.