Compare 3Com Megahertz 56K WinModem Analog Modem (3CXM356) to 3Com U.S. Robotics Courier 56K Business Modem Analog Modem (USR3453B)

Connect to the Internet, send e-mail, or fire off a fax with the high-throughput 3Com Megahertz 56K Winmodem PC Card. Designed specifically for Windows-based notebooks, this PC card delivers high reliability and performance. An XJACK connector eliminates the need for carrying extra cables, and Intelligent Auto Install makes installation a breeze. Advanced line probing technology helps your modem sense the "potholes" that can slow down connections and tells your provider's equipment how to adjust its signal to avoid them so you get the fastest downloads possible on each call. Downloadable software upgrades ensure that you'll always have the latest features and enhancements for your modem. For quick and reliable online access, get connected with the 3Com Megahertz 56K Winmodem PC Card with XJACK Connector. Less

The U.S. Robotics Courier 56K Business Modem with V.Everything and V.Everywhere technology is the latest in the distinguished Courier line. Many modems claim reliability, but few match the real-world performance of Courier modems. Even fewer offer the multitude of advanced business features found on this modem: global usage, Carrier Loss Redial, and Dial and Dialback Security. Remote management capabilities let you configure, set up, or troubleshoot your modems from almost anywhere. When failure is not an option, you need the world-class capabilities that only come from the top of the U.S. Robotics product line. Less