3Com US Robotics 0766 3CP5699A Card used works

US ROBOTICS 0766 PCI Modem Card

3Com US Robotics USR 0766 56k PCI Card Dial Up Desktop Modem

3COM US Robotics 56k Modem PCI card Model 005687-03

US Robotics USR 56K PN 3CP2976-OEM 56 Kbps PCI Analog Speaker Telephone Modem

US ROBOTICS 3COM 0766 PCI 56K INTERNAL MODEM WITH WARRANTY

PCI Dial-Up Modem Card RJ11 56K Fax Modem Internal Desktop PC

3Com 0637 US Robotics PCI 56K Modem Card (3C0426297400-83010) "P6B"