1、Asynchronous and Serial: The PCIe parallel port expansion card includes four 16C550 or 16C750 compatible asynchronous, serial and one EPP ECP enhanced bidirectional parallel port, and can also add CH438 chip to expand up to 24 serial ports 2、Convenient and Practical: the asynchronous serial port provides an independent 256 byte FIFO buffer for sending and receiving, supports IrDA infrared codec, and supports 8Mbps communication baud rate 3、Extended Multi Serial Port: The same chip can be configured as four channel serial port and parallel port of PCI E bus, or print port or four channel serial port and extended multi serial port 4、Supported Functions: The parallel port PCIe riser card supports SPP, Nibble, Byte, PS/2, EPP, ECP and other IEEE1284 parallel port and print port working methods. Support bidirectional data transmission, support transmission speed up to 1M bytes per second 5、Wide Compatible: The riser card supports for Win 98SE, for Win ME, for Win NT 4.0, for Win 2000, for Win XP, for Win Vista, for Win Server2003, for Win 7, for Linux 6、Host Interface: The riser card provides a two wire serial host interface, which can be connected to a serial EEPROM device similar to 24C0X for storing non volatile data, and the device identification of the PCIe board can be set in the EEPROM device 7、Scope of Application: The parallel port PCIe riser card can be used for PCI E bus RS232 serial port expansion, MiniPCIE high speed serial port with automatic hardware rate control, serial port networking, RS485 communication, IrDA communication, parallel port and print port expansion, etc Item Type: PCIe Parallel Port Expansion Card Material: PCB Interface Type: MiniPCIE System support: for Win 98SE, for Win ME, for Win NT 4.0, for Win 2000, for Win XP, for Win Vista, for Win Server2003, for Win 7, for Linux 1 x PCIe Parallel Port Expansion Card 1 x Transfer Cable 1 x Baffle 2 x Screws 1 x Drive Disk