Internal PCI Express 56K Data Fax Modem - Bluetooth & Telecom Adapters | StarTech.com
U.S. Robotics USR5670 Fax modem 56Kbps PCI Bus (Plug & Play) V.92 56K ITU standard V.90 56K ITU standard V.34 33.6K ITU standard Compatible with most ITU and Bell standards down to