PCI Express serial port card with two RS232 ports Designed for point of POS and ATM applications, and also suitable for industrial automation system integrators. Two RS232 serial ports (extended) with data rates up to 230.4 Kbps and modem control signals to ensure compatibility with a wide range of peripheral serial devices. Supports various mainstream operating systems. Core benefits Adds reliable serial I/O to a PCI Express system without changing existing peripherals Supports legacy RS232 devices through standard signals and handshake options Enables communication with printers, scanners, card readers, and other serial peripherals in POS, ATM, and automation environments Use scenarios Point of terminals: connect receipt printers, barcode scanners, cash drawer controllers, and peripheral POS devices ATM/Kiosk peripherals: interface card readers, receipt printers, and other external devices Industrial automation: integrate legacy sensors, controllers, and equipment that rely on RS232 communication Key attributes Function: PCI Express serial port expansion with two RS232 ports Compatibility: supports various mainstream operating systems Performance: up to 230.4 Kbps per port with modem control signals Application: suitable for POS, ATM, and industrial automation system integration Notes: maintains compatibility with a broad range of serial devices using standard RS232 signaling