The Sportster External 33.6 Faxmodem is designed for people who want their modems to work the first time, every time people who have no time to learn complicated procedures. It also includes all the built in all of the features an avid user could ask for, like simple Plug and Play installation, powerful controller-based processing, support for all major operating systems, and more. No other modem brand offers the combination of feature-rich performance, value, and reliability of USRobotics.