The MosChip/ASIX MCS9904CV-AA is a quad serial port and parallel port PCIe bridge controller chip. It is a multi-function expansion chip that offers four RS232 serial ports and one IEEE 1284 compliant parallel port. The MCS9904CV-AA provides a reliable solution for integrating legacy peripherals into modern computer systems through PCIe interface. The RS232 ports support data transfer rates of up to 115.2 Kbps, making it suitable for various industrial and communication applications. The parallel port offers compatibility with older printers and other parallel devices. With its versatile functionalities and compatibility, the MCS9904CV-AA is a practical choice for industrial automation, POS systems, and other applications requiring legacy device support.
