Add one internal and one external superspeed usb 30 to your pc the pexusb3s11 pci express usb 30 card lets you add one internal and one external usb 30 port to your pc through a pci express slot featuring a native nec pci express host controller chipset the new usb 30 standard supports transfer rates of up to 5gbps while still providing backward compatibility with older usb 20 480mbps and 11 12mbps devices the inclusion of an internal usb 30 connection provides the added bene