StarTech.coms 16550 Serial PCI Card can be installed in a PCI slot to add four RS232 serial ports - a cost-effective solution for connecting any new serial device or old legacy serial device, with data transfer rates of up to 115.2 Kbps.Perfect for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more, to your system, the 4 serial port PCI card supports IRQ sharing and operates flawlessly with Windows XP, Server 2003, 2000, ME, 98, 95, NT4, 3.1, DOS and Linux.A convenient solution thats easy to install, the PCI serial card can be connected in minutes through simple plug and play installation and is backed by StarTech.coms lifetime warranty and FREE LIFETIME tech support.