The PCI2S550 2 Port 16550 Serial Card can be installed in an available PCI slot to add two RS232 serial ports to your system. A cost-effective solution for connecting any new or legacy serial device, with data transfer rates of up to 115.2 Kbps. The adapter card supports IRQ sharing and is perfect for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more to your system. The card can be connected in minutes through simple plug and play installation and is backed by a StarTech.com lifetime warranty and free lifetime technical support. Get more out of your serial devices! StarTech.coms 2port Pci 16c550 Serial I/ocard gives you two serial ports for connecting any new or old serial peripheral, with data transfer rates of up to 920 Kbits/sec. Perfect for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more, to your system. Installation is a breeze with support for Windows XP, ME, 2000, 98, 95, NT4, 3.1, DOS and Linux. Plus, IRQ sharing and a PCI plug and play interface.