USB-EXP USB to USB Mode ExpressCard Host Adapter for 3G AirCard ExpressCard AT&T Cingular Sprint Verizon Kyocera Marlin Novatel Sierra Wireless For Express Card 34 mm, such as broadband access card (EV-DO or HSDPA), memory cards. USB 2.0 high speed, Compliant with USB 2.0 specification Support for PC with USB ports USB bus powered, no power adapter required NOT WORK WITH any ExpressCard using the PCI Express (PCIe) portion of the ExpressCard standard or PC PCMCIA cards!