Koutech Dual Channel SuperSpeed USB 3.0 PCI Express (x1) Card with Intel Internal Connector (ICC) & 15-pin SATA Power Connector Two (2) external 5Gbps SuperSpeed USB 3.0 ports via ICC ICC is a 20-pin connector by Intel USB 3.0 Internal Connector & Cable specification Up to 5Gbps maximum transfer rate Built-in with 15-pin SATA power connector for added power source to better support power hungry bus-powered devices Fully Plug-N-Play and Hot Swap compatible and supports 32-bit & 64-bit Windows XP/Server 2003/Vista/Server 2008/ Windows 7