p The Perle UltraPort SI PCI card is the most advanced serial card solution on the market today providing a complete solutions for retail point of sale, data acquisition, industrial automation, advanced kiosk design and much more. Perle UltraPort SI with software selectable interfaces, provides the ability to make dynamic configuration changes between EIA-232, EIA-422 and EIA-485 without having to take down the server. This ensures maximum availability for mission critical operations. /p