Add 4 external USB (Universal Serial Bus) 3.0 ports to a low profile or standard computer, through PCI Express. The PEXUSB3S4V PCI Express USB (Universal Serial Bus) 3.0 Card (with SATA Power) adds 4 external USB (Universal Serial Bus) 3.0 ports to any PCI Express-enabled computer system. Super Speed USB (Universal Serial Bus) 3.0 provides up to 5 Gbps of data bandwidth, while remaining backward compatible with existing USB (Universal Serial Bus) 2.0 devices at 480 Mbps.