Data transfer rates of up to 460. 8 Kbps for peak serial device performance Backward compatible with 16C450, 16C550, 16C650 and 16C750 UARTs for simple integration with existing hardware Easy to install and use with full step-by-step instructions saves time and hassle Supports the RS-232 serial interface Full 128-byte receiver and transmitter FIFO Fully adjustable IRQ trigger levels Automated flow-control IRQ sharing saves resources and eliminates conflicts Add 2 RS-232 serial ports to your computer via a single PCI slotThe PCI2S950 2 Port PCI RS232 Serial Adapter Card with 16950 UART offers two high performance 16C950 serial UART channels/ports using a single PCI slot. Perfect for connecting new or legacy serial peripherals to your system, with data transfer rates of up to 460.8 Kbps. The PCI-based RS232 Serial card is a cost-effective solution for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more, without having to upgrade peripherals for USB compatibility. Installation is a breeze with support for a broad range of Windows operating systems. Plus, IRQ sharing and a PCI plug and play interface guarantee convenient, hassle-free connections. Backed by a StarTech.com lifetime warranty and free lifetime technical support.