1 2 Serial ports: Serial adapter card has two serial ports to easily expand more devices. The serial port supports RS 232 protocol, transfer speed up to 115200bps, and also supports hardware and software flow control 2 Support System: Serial port expansion card supports for Linux, for Windows XP, for Vista, for Win 7, for Win 8, for Win 8.1, for Win 10 32 64bit 3 M.2 interface: M.2 interface, compatible with PCI Express 2.0 Gen 1, compatible with PCI Express M.2 specification version 1.0, compatible with PCI Power Management 1.2 4 Plug and Play: Serial adapter card is plug and play, no other driver routines needed, it is convenient and fast to use, and its performance is stable 5 Application: Adapter card can be used for serially connected equipment, serial network, surveillance equipment, data collection system, POS terminal and industrial PC, serial I, 0, USB for expansion card, I O expansion of built-in system Product Type: M.2 Serial Port Adapter Card Material: PCB Interface Type: M.2 Endpoint Controller: Single Lane (x1) PCI Express Endpoint Controller with integrated PHY PCI Express 2.0 Gen 1: Compatible PCI Express M.2 Specification Version 1.0: Compatible PCI Power Management 1.2: Compatible Dual UART or Quad UART: Supported RS 232, RS 422, RS 485 Multiprotocol: Supported Bidirectional Speed: Up to 25 Mbps bidirectional speed per port Function: Full serial modem control Hardware, Software Flow Control: Supported 5, 6, 7, 8 and 9 Bit Serial Formats: Supported Even, Odd, None, Space, and Parity: Supported Custom Baud Rate: Supported custom baud rate via internal PLL or external clock Function: Supports a 256-byte deep FIFO on chip in transmit and receive path for each serial port Remote Wakeup and Power Management Functions: Supported Serial Transmitter Receiver Disable: Supported Slow IrDA Mode: Supports slow IrDA mode (115200bps) on all serial ports Multipoint Application in 9-bit Mode: Supported DMA Burst Transfer: Supported Applications: Serially connected devices, serial network, surveillance equipment, data collection system, POS terminals and industrial computers, serial I 0 USB for expansion card, I O expansion for built-in system System Requirements: For Linux, for Windows XP, for Vista, for Win 7, for Win 8, for Win 8.1, for Win 10 32 64bit 1 x Expansion Card 2 x Patch Cables 2 x Connectors 4 x Screws 1 x Driver Disk Your satisfaction is our highest priority. We will provide you with the best service. If you find any issues after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately so we can give you the best solution!