Get more out of your serial devices! Star Tech&s PCI2S550 gives you two serial ports for connecting any new or old serial peripheral with data transfer rates of up to 1152 Kbitssec Perfect for connecting serial modems POS devices PDAs digital cameras printers ISDN terminal Adaptors & more to your system Installation is a breeze with support for Windows XP Server 2003 2000 ME 98 95 NT4 31 DOS & Linux Plus IRQ sharing & a PCI plug & play interface guarantee convenient hassle-free connections Backed by Star Tech&s lifetime warranty & FREE LIFETIME tech support Features 16 byte FIFO buffer ensures fast data transfer while multitasking IRQ sharing saves resources & eliminates conflicts Supports the RS-232 serial interface Operating Systems Supported Windows 10 (3264-bit) 881 (3264-bit) 7 (3264-bit) Vista (3264-bit) XP (3264-bit) 2000 Windows Server 2012 2008 R2 Product Type Serial Port Card Serial Ports 2 x DB 9-pin (Male)UART 2 x 16C550 Warranty Lifetime warranty Weight 013kg