PEU433 KOUTECH PEU433 KOUTECH PEU433 Four (4) 5Gbps SuperSpeed USB 3.0 ports comprised of: three (3) external + one (1) internal connectors SuperSpeed USB 3.0 offers up to 5Gbps maximum transfer rate which equals 10 times performance increase over Hi-Speed USB 2.0 Fully compliant with one-lane (x1) PCI Express 2.0 specifications and USB 3.0 complies with Intel eXtensible Host Controller Interface (xHCI) Built-in voltage power regulator to better support power hungry bus-powered devices (no power connection required) and Fully Plug-N-Play and Hot-Swap compatible Supports Windows XP/Server 2003/Vista/Server 2008/Windows 7/Windows 8