USB to USB Mode 34mm ExpressCard Host Adapter for 3G AirCard ExpressCard AT&T Cingular Sprint Verizon Kyocera Marlin Novatel Sierra Wireless, NOT for PCMCIA PC card 54mm NOT WORK WITH any ExpressCard using the PCI Express (PCIe) portion of the ExpressCard standard Compatible with all USB 2.0-MODE ExpressCards including many WLAN, WiMax, 3G (HSDPA and CDMA) and memory USB bus powered, no power adapter required. Compact and portable design with low power consumption Up to USB High Speed 480Mbps (Megabits) interface access to host systems with USB 2.0