Converts the CardBus slot on your laptop PC to ExpressCard/34 slot Host side: 32-Bit CardBus PC Card Type II standard compliant Device side: ExpressCard/34 slot (USB Interface Only), compliant with ExpressCard/34 module outline dimension Support data transfer rates: High Speed 480Mbps, Full Speed 12Mbps, and Low Speed 1.5Mbps Support Plug & Play and Hot Plug features