Product Detail Adds 1 internal and 4 external USB 2.0 ports to a computer Installs easily into any PCI Express slot Up to 480Mbps data transfer speed Supports up to 127 hi-speed devices Includes installation CD . The "USB 2.0 Express Pci Card 4-EXTERNAL/1-INTERNAL" is best product for you. We recommended USB 2.0 Express Pci Card 4-EXTERNAL/1-INTERNAL