3Com U.S. Robotics 56K Modem PC Card 3056 3Com USR XJ Vintage Computing

Lite-On CNR-002#/R6A 56K Modem Card RJ-11 CNR Riser Vintage PC

Vikings Components 56K Windows Modem

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

VINTAGE Zonet ZFM5600CF 56K V.92 PCMCIA FAX-Modem PC Card - New - Open Box

Viking Components 56K Internal Modem PCI V90 Windows 95 98 NT Boxed Fax PnP

Diamond Multimedia 56K PCI Modem Card Conexant RH56D-PCI 23680001-002

HP Internal Fax/Modem Card. 5188-2907 PCI 56K Untested