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

Vintage Winbond W9922PF PCI 56K Fax Modem Card B151-G30 RJ11 Dial-Up

Vintage Amquest AM56HCFSP 56K PCI Modem Sound Card

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

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

56k DAA E V7.0 Adapter Modem Card RJ11

Intel 56K PCI DSL RJ-11 Modem Card With 3.5mm Audio Jacks IF56A-CL/UK

Conexant 56K Dial-Up Fax Modem PCI Card RJ11 Phone Line CX11252-41Z Rev 2.2