US Robotics 0766 64-005699-02 56K PCI Fax Modem Card RJ11 Line Phone

3Com US Robotics 3CP5699A 56K PCI Fax Modem Card RJ11 Line Phone

US Robotics USR5610B 56K PCI Voice Fax Modem Card Internal

Vintage USRobotics USR5699B 56K PCI Fax Modem Card V.92 Dial-Up RJ11 - untested

U.S. Robotics USR5610C 56K PCI Fax Modem Card RJ-11

US Robotics USR5610B ISA 56K Fax Modem Card Vintage Internal

US Robotics USR5699B 56K V.92 Internal PCI Modem - TESTED - EXCELLENT

USRobotics USR5699B 56K PCI Fax Modem Card – Internal Dial-Up – Used