1、2 Serial Ports: Serial adapter card has two serial ports to easily expand more devices. The serial port supports RS 232 protocol, the transmission speed is up to 115200bps, and it also supports hardware and software stream 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, compliant with PCI Express 0 Gen 1, compliant with PCI Express M.2 specification version 0, compliant with PCI Power Management 4、Plug and Play: Serial adapter card is plug and play, no other drivers are needed, it is convenient and fast to use, and its performance is stable. 5、Scope of Application: Adapter card can be used for serially connected equipment, serial network, monitoring equipment, data acquisition system, POS terminal and industrial PC, serial I, 0, USB of add on card, I O expansion of embedded system. 1 x Expansion Card2 x Patch Cords2 x Bezels4 x Screws1 x Drive Disk Item Type: M.2 Serial Port Adapter CardMaterial:PCBInterface Type: M.2Endpoint Controller: Single Lane (x1) PCI Express Endpoint Controller with integrated PHYPCI Express 2.0 Gen 1: CompliantPCI Express M.2 Specification Version 1.0: CompliantPCI Power Management 1.2: CompliantDual UART or Quad UART: SupportRS 232, RS 422, RS 485 Multi Protocol: SupportBidirectional Speed: Up to 25 Mbps Bidirectional Speed Per PortFunction: Full Serial Modem ControlHardware, Software Stream Control: Support5, 6, 7, 8 and 9 Bit Serial Formats: SupportedEven, Odd, None, Space and Sign Parity: SupportedCustom Baud Rate: Support Custom Baud Rate Via Internal PLL or External ClockFunction: Supports an on chip 256 byte deep FIFO in the Transmit and Receive Way of Each Serial PortRemote Wake Up and Power Management Functions: SupportSerial Transceiver Shutdown: SupportSlow IrDA Mode: Supports Slow IrDA Mode (115200bps) On All Serial Ports.Multipoint Application in 9 Bit Mode: SupportDMA Burst Transfer: SupportApplications: Serial Connected Devices, Serial Networks, Monitoring Devices, Data Acquisition Systems, POS Terminals and Industrial PCs, serial I 0 USB for add in cards, I O Expansion for Embedded SystemsSystem Requirements: For Linux, for Windows XP, for Vista, for Win 7, for Win 8, for Win 8.1, for Win 10 32 64bit