![Amazon.com: US Robotics USR courier 56k v90 v92 external business fax/modem rs-232 rohs USR3453C : Electronics Amazon.com: US Robotics USR courier 56k v90 v92 external business fax/modem rs-232 rohs USR3453C : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/51xf5I8N13L._AC_UF894,1000_QL80_.jpg)
Amazon.com: US Robotics USR courier 56k v90 v92 external business fax/modem rs-232 rohs USR3453C : Electronics
![U.S. Robotics USR5637 56K USB Controller Dial-Up External Fax Modem with Voice : Electronics - Amazon.com U.S. Robotics USR5637 56K USB Controller Dial-Up External Fax Modem with Voice : Electronics - Amazon.com](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/611fEu-KP9L.jpg)
U.S. Robotics USR5637 56K USB Controller Dial-Up External Fax Modem with Voice : Electronics - Amazon.com
![Amazon.com: US Robotics USR5610C USROBOTICS PERFORMANCE PRO - FAX / MODEM - PLUG-IN CARD - PCI - 56 KBPS - V.90, : Electronics Amazon.com: US Robotics USR5610C USROBOTICS PERFORMANCE PRO - FAX / MODEM - PLUG-IN CARD - PCI - 56 KBPS - V.90, : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/61tklSIZx7L._AC_UF894,1000_QL80_.jpg)
Amazon.com: US Robotics USR5610C USROBOTICS PERFORMANCE PRO - FAX / MODEM - PLUG-IN CARD - PCI - 56 KBPS - V.90, : Electronics
![Amazon.com: U.S. Robotics V90 56K Courier Everything INT Modem with 14.4K ISA Half Card (002805-00) : Electronics Amazon.com: U.S. Robotics V90 56K Courier Everything INT Modem with 14.4K ISA Half Card (002805-00) : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71yyrUgyxiL._AC_UF894,1000_QL80_.jpg)