This USB 3,1 PCIe card lets you add four USB Type-A ports to your computer, through a PCI Express slot, With two independent 10Gbps channels, the card makes it easy to upgrade your PC to the faster speed of USB 3,1 Gen 2 so that you can access newer peripherals at twice the speed of traditional USB 3,0 (USB 3,1 Gen 1) cards,FeatureProvides four external USB 3,1 ports on two independent bus channelsTransfer files and access USB 3,1 devices faster, with up to 10Gbps throughputOptional LP4 or SATA power connector provides up to 900mA per USB port- SKU: ZX9ISTR64373