Verizon PC770 2 in 1 Mobile Broadband Express PCMCIA Aircard 3G Modem Mobile Broadband high-speed wireless data access 1xEVDO Rev.A/0; 1xRTT; 800, 1900 MHz Integrated PC Card Adapter for use with Type II PCMCIA Card Slot Embedded antenna with External Antenna Connector.(External antenna sold separately) VZAccess Manager software on device Compatible with Microsoft Windows 2000, XP, Vista, Windows 7 and Mac OS X 10.4.0 or higher