DESC: Get fast reliable modem connections with the 3Com Megahertz 56K Global GSM and Cellular Modem PC Card. Built-in XJACK connector, now with status lights, delivers easy, dependable phone connections without carrying or losing cables. It's approved in more than 36 countries and available in 18 languages. It easily configures for phone lines in more than 250 countries/regions as well as for multiple dial-up locations. ??And wherever you connect, Exclusive Line Probing technology delivers higher modem throughput and and more reliable connections-even over the worst phone lines. Use it with your notebook running DOS, Windows, Mac OS, or Linux and select analog cellular phones or GSM handsets.