Model: U.S. Robotics 56K Voice Internal PCI
Operating System: Windows NT 4.0 (Note: might work with other versions of this os.)
Before downloading: Run Free Scan for Instant Driver Updates
3Com U.S. Robotics 56K Voice Internal PCI Driver. These are the drivers for the 56k internal pci modem 199(3-com US Robotics)
Once you have downloaded the drivers run setup within the files to install.