Converts ExpressCard/34 & ExpressCard/54 to USB * USB bus powered, no extra power adapter required * Compatible with all USB 2.0-Mode ExpressCards including many WLAN, WiMAx, 3G (HSDPA and CDMA) * USB Specification v.1.0/1.1/2.0 compatible (data transfer rate at 1.5/12/480Mbps) * Fully Plug-N-Play and Hot-Swap compatible and supports Windows 98SE/ME/2000/XP/Server 2003/Vista/Server 2008/Windows 7/Windows 8 and later, and Mac OS