PCI EXPRESS PCIe USB 2.0 (6+1) 7 Port  Card Adapter

with Low Profile Bracket

The card adds 6 external USB 2.0 slots and 1 internal USB 2.0 header port, with support for high speed USB 2.0 data transfer rates of up to 480 Mbps.

VIA VT6212L USB Chip

Pericom PI7C9X111 PCIe Bridge chip

General
Lane (x1) PCI-Express with transfer rate 2.5Gb/s Full Duplex channel
Compliant with PCI-Express Revision 1.0a
Fully Plug & Play Compatible
Driver supported MS Windows 98SE/ME/2000/XP/Server 2003/XP 64-bit/Vista

USB 2.0 interface

USB 2.0 Specification Compliant
Backward compatibile with USB 1.1 Specification
Open Host Controller Interface Specification for USB Rev 1.0a Compliant
Enhanced Host Controller Interface Specification for USB Rev 0.95 Compliant
Data Transfer Rate: High Speed 480Mbps, Full Speed 12Mbps, and Low Speed 1.5Mbps Supported
Connects up to 127 USB devices simultaneously