Syba SD-PEX-EXPC PCI-Express to ExpressCard Adaptor PCI-Express I/O Cards Adapter, Converter between 34mm and 54mm notebook Express card to desktop computer's internal PCI express slot Compatible with most expresscard 3G card, expresscard multimedia card reader, Syba's firewire / USB expansion expresscard Supports Microsoft Windows 2000/XP/Server 2003/XP 64-bit/Vista Plug and Play, No driver needed