You're looking rtl8139d 56489q1r for Windows. It's 100% safe, added from safe source and passed Symantec antivirus scan!
Driver Info:
File name: rtl8139d_56489q1r.exe
Driver version: 1.5.1
File size: 2 928 KB
OS: Win XP, Win Vista, Windows 7
Upload source: other website