CP-114EL smart, 4-port PCI Express cards are designed for POS and ATM applications. Additionally, all 4 RS-232/422/485 serial ports of these cards operate at a super-fast 921.6 Kbps baudrate. Windows COM and Linux/Unix TTY drivers are provided for all Moxa cards and other embedded operating systems such as WEPOS. These serial port multiplexer cards can operate on all types of computers, from shoe sizes to standard size PCs, with only a 3.3 VDC power supply requirement.