... a ExpressCard slot Compatible with PC & MAC systems USB TO EXPRESS card1,USB interface,Support hot-swappable2,Provide a ExpressCard slot ... ), HSDPA (3.5G) broadband card4,Does not support the PCI Express interface design ExpressCard cards, such as certain eSATA, Firewire IEEE1394a ... systems6,Power use: DC +5 V7,NO driver USB to Express Card High Quality