HEMSA-T-033 is a universal Mini PCI-E serial card designed for POS, ATM and other applications, which can be used in industrial automation and integration systems. HEMSA-T-033 provides 4 RS-485/422 serial ports, which can be connected to a variety of serial devices such as PC, terminal, modem, printer, scanner, etc. Each port can reach a baud rate of 921.6 Kbps and provides modem control signals to ensure the compatibility of serial device peripherals.