PCI EXPRESS PCIe usb 2.0 (3+1) 4 Port  Card Adapter

with Low Profile Bracket

VIA VT6212L USB Chip

Pericom PI7C9X110 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