Yes. Visit: http://www.sierrawireless.com/SupportDownload/ac550_Linux.html for directions. Note, as usual, it is "Unsupported". Your friendly neighborhood Sprint PCS Unix Systems Engineer :-), Wrex Allen In response to: Subject: Sierra Wireless AirCardR 550 From: "Mark Hutchings" > Message-Id: <20020816142045.CSDY278.mta11.onebox.com@onebox.com> Got a Sierra Wireless AirCardR 550 PCMCIA modem. Service is provided by Sprint PCS. Great card under Windows. Anyone know if these can be ran under linux? (RH 7.3 w/ KDE 3)