This PCI Express Serial Adapter card can be installed into any PCI Express slot on a computer, to provide two high performance 16C950 RS232 serial UART channels/ports - a convenient solution for connecting modern or legacy serial devices with support for data transfer rates of up to 460 Kbps. The serial adapter card is easy to install, with support for Windows® 2000, XP, 2003 and Vista. Plus, the card features IRQ sharing and supports plug and play serial device connections, guaranteeing convenient, hassle-free installation. The 2 Port PCI Express 16C950 Serial Card is backed by StarTech. com’s lifetime warranty and FREE LIFETIME tech support.