This 5 Port PCI Express USB 2. 0 Adapter Card lets you connect up to five USB 2. 0 peripherals (4 external and shared 1 internal) to your computer, with support for high speed USB data transfer rates of up to 480 Mbps. Plus, the PCI Express USB card is backward compatible with USB 1. 1, so you can continue using your older USB peripherals. Featuring easy plug and play installation, this adapter card provides convenient, hassle-free connections without having to reboot the host computer. This product is backed by StarTech. com’s Lifetime Warranty and FREE LIFETIME technical support.