Product description USB2connect 4000 is a USB 2.0 host adapter for PCs and Macs that provides connectivity to USB 1.1 and USB 2.0 devices. It has four external ports, includes the Adaptec USBcontol utility and drivers for Windows 98SE, Me, 2000 and XP. It is backed by Adaptecs world-class reliability and support. From the Manufacturer The Adaptec 4-port USB 2.0 PCI adapter allows you to add four high-speed, 480-Mbps USB 2.0 ports to your computer while maintaining backward compatibility with current USB 1.1 devices. This product includes high-performance Adaptec USB 2.0 drivers for Windows 98 Second Edition, Millennium Edition, 2000 and XP specifically designed and optimized for the USB2connect 4000. You get guaranteed USB 1.1 and USB 2.0 compatibility and hassle-free operation.