This USB to 2-port 56k modem lets you add two RJ-11 jacks to your computer that you can use for dial-up Internet access and external fax modem support. Add reliable legacy technology to your new computer It's almost impossible to find a modern computer with a dial-up modem, even though modems are still commonly needed for fax communication and rural Internet connections at both the home and the office. This two-port modem gives you the freedom to upgrade your existing computer or server and connect to the Internet, while still being able to have your fax machine connected via the pass-through port. Get a modem without draining your system’s resources This hardware controller-based modem saves system resources and minimizes load on your computer’s CPU, using on-chip processing to deliver dial-up access without taxing your computer performance. Plus, with support for transfer rates up to 56 Kbps (data) and 14.4 Kbps (fax), and compatibility with the latest transmission standards (V.92, V.90, etc.), this versatile USB modem can be used as a backup Internet connection, or in rural areas where broadband connections are not available. The modem also supports both Windows and Mac OS platforms, providing the compatibility needed for true convenience. Maximize portability with a compact design To ensure portability the USB modem features a compact, lightweight design and is powered through the USB host connection. This portable design makes this modem the perfect accessory to carry with your laptop computer, fitting easily into your laptop bag or carrying case.