Add 4 USB 2.0 ports to any desktop computer with a PCI slot. This PCI-based high-speed USB 2.0 adapter card adds five USB 2.0 “A” female ports (1 internal, 4 external) to your PCI-compliant PC. The PCI USB 2.0 card is a versatile solution that allows you to add USB 2.0 connections without having to update the system motherboard, compatible with the most popular operating systems, including Windows 98SE / ME / 2000 / XP / Vista. A practical and time-saving solution, the USB PCI card is WHQL certified to simplify driver installation in Windows XP operating environments and supports hot swapping of USB devices, allowing you to connect / disconnect USB peripherals without having to shutdown the computer. The adapter card is designed and built to provide durable USB capacity