Support Information:
Device Type: Network Devices
Manufacturer: Realtek
Model: 8139
Interface: PCI / ISA
Operating System: Windows XP Professional x64
Age of Device: Not specified
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=&qa5=12&qa7=1501&dp=3&qm0=8139&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Realtek+Network+Devices+Realtek+8139+Windows+XP+ Professional+x64+)

The driver for your OS and device is posted here. (www.realtek.com/downloads/downloadsView.aspx?Langid=1&PNid=6&PFid=6&Level=5&Conn=4&DownTypeID=3&GetDown=false)