This 10 pack of PCI2S550 serial cards lets you deploy serial connectivity across multiple computers, at a competitive price. Ideal for system builders, these cards come in non-retail packaging with a single driver disk, providing you with over 35% in savings!Description of PCI2S550 serial card: This 2 Port 16550 Serial Card can be installed in a PCI slot to add two 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 adapter card supports IRQ sharing and operates flawlessly with Windows XP, Server 2003, 2000, ME, 98, 95, NT4, 3.1, DOS and Linux. The card can be connected in minutes through simple plug and play installation and is backed by StarTech"s lifetime warranty and FREE LIFETIME tech support.