PCIe USB 3.0 4 Port External Card Features: Compliant with PCI Express Base Specification Revision 2.0 Compliant to 1-Lane (x1) PCI Express through rates up to 5 Gbps Compliant with Universal Serial Bus 3.0 specification Revision 1.0 Supports Low-speed (1.5Mbps) / Full-speed (12Mbps) / High-speed (480Mbps) / Super-speed (5Gbps) Supports 4ports of USB 3.0 downstream, and backward USB 2.0 and USB 1.1 devices Built in 4P power connector for receiving extra power supply from system Hot-swapping feature allows you to connect/disconnect devices without powering down the system Connectors: 4 x ext Type A connectors Supports Windows 2000/XP/2003/Vista/XP/Vista/7 (32/64 bit) CE/FCC/ROHS Package Contents : 1 X Product 1 X Manual 1 X Driver CD (Note : Photo attached is for reference only, it may be slightly varied in items of colour, shape from the actual item delivered from time to time)