... Express Card USB interface,Support hot-swappable Provide a ExpressCard slot Compatible with PC & MAC systems USB TO EXPRESS ... card1,USB interface,Support hot-swappable2,Provide a ExpressCard slot, supports ExpressCard 34/54mm PC ... .5G) broadband card4,Does not support the PCI Express interface design ExpressCard cards, such as certain eSATA, ... +5 V7,NO driver USB to Express Card High Quality