Welcome to the store! 1. Asynchronous and Serial: The PCIe parallel port expansion card includes four 16C550 or 16C750 compatible asynchronous serial ports and one EPP ECP enhanced bidirectional parallel port. It can also add a 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 transmission and reception, supports IrDA infrared codec, and supports an 8Mbps communication rate. 3. Extended Multi-Serial Port: The same chip can be configured as a four-channel serial port and parallel port for the PCI E bus, or a printer port, or a four-channel serial port and extended multi-serial port. 4. Supported Features: The parallel port PCIe riser card supports SPP, Nibble, Byte, PS/2, EPP, ECP, and other IEEE1284 parallel port and printer port working methods. It supports bidirectional data transfer with a transmission speed of up to 1MB per second. 5. Widely Compatible: The riser card supports Win 98SE, Win ME, Win NT 4.0, Win 2000, Win XP, Win Vista, Win Server2003, Win 7, and 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 non-volatile data storage. The device identification for the PCIe card can be set in the EEPROM device. 7. Application Scope: 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 control, serial port networking, RS485 communication, IrDA communication, parallel port and printer 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 Driver Disk Your satisfaction is our top priority. We will provide you with the best service. If you encounter any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!