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

GVC DI-1156IV/P2 56K PCI Fax Modem Card RJ11 Vintage Internal Modem

GVC DI-1156IV 56K PCI Fax Modem Card Compaq Internal Dial-Up RJ11 Vintage

AOpen FM56-PM 56K PCI Fax Modem Card Internal Dial Up RJ11 Retro Vintage

MODEL: F-1156IV/A2A — a 56K PCI internal dial-up fax/data modem card Untested

PCI slot card - Conexant - 56k data fax phone modem - 2x RJ-11 mic and speaker.

Conexant Data/Fax Modem PCI Card RD01-D850 56K V.92 for Desktop PC

Macsystem MA560CI Internal PCI Fax Modem Card 56K Conexant HSFI CX11252-11