USB Controller Card PCI-E Express USB 3.0 4 Port 5Gbps Controller Card Wewoo Highlights PCI-E Express USB 3.0 4 Port 5Gbps Controller Card PCI-E Express USB 3.0 4 Port 5Gbps Controller Card Specification: 1) Fully compliant with the PCI Express Base Specification Revision 2.0 2) PCI Express single lane (x1) throughput rate up to Gbps 3) Complies with Universal Serial Bus 3.0 Specification Revision 1.0 4) Supports simultaneous operation of multiple USB 3.0, USB devices 2.0 and USB 1.1 5) Supports the following speed rates: low speed (1.5Mbps) / full speed (12Mbps) / high speed (480Mbps) / super speed (5Gbps) 6) Supports 4 downstream ports for all speeds 7) Built-in 4-pin power connector to receive additional power from the system 8) Hot swap function allows you to connect/disconnect peripherals without shutting down the system 9) Support for Windows 7/XP/Vista Accessories : 1 PCI Express USB 4 port USB 3.0 card 1 x Driver CD