SIIG JU-EC0112-S1 2-Port USB 3.0 ExpressCard 34 Host Adapter * Â Adds 2 USB 3.0 ports to your PC * For ExpressCard-enabled PCs * Works with high-bandwidth USB 3.0 devices such as external hard drives, high resolution webcams, multi-channel audio and more * Transfer rates up to 4.8Gbps