Compare 3Com Megahertz 56K WinModem Analog Modem (3CXM356) to 3Com Megahertz 56K Cellular Modem Analog Modem (3CXM556)

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 3Com Megahertz 56K PC Card (Cross Platform Support PC/Mac) sets the pace with the built-in V.90 56K technology and light-speed downloads over regular phone lines. In addition, you'll enjoy market-leading features like Mobile Speakerphone, Caller ID and Phone Answering, which turn your notebook into a portable telephone. ??This model also features an X-Jack connector, the easiest way to connect to any standard phone line. With the X-Jack, you avoid the hassle of carrying and losing cumbersome cables; simply pop it out to hook to any standard phone cord then lock it back in for safe travel. It is cellular capable and connects directly to cellular phones with a separate cellular cable. ??Additional features of this model include Flash DSP which allows you to update your modem's main functionality without returning it, using simple software downloads. It also features Flash ROM to perform basic enhancements to your modem with software updates from the field. This model has an intel... Less