1、This expansion card has two 16550 fast Uart serial ports, and the data transfer rate supports up to 115200bps. 2、The expansion card can be plug and play, automatically select IRQ and IO address, and support IRQ sharing. 3、This expansion card can operate on for Windows 32-bit 2000 / XP / 2003 Server / Vista and 64-bit XP / 2003 Server / Vista / WIN7 / WIN8 / WIN10 / Linux. 4、The expansion card supports standard serial mode with automatic identification function. 5、This expansion card can be applied to many systems to meet your needs and easy to operate. 1 x Expansion Card Item Type: Expansion CardPecifications:PCI-Express rate 2.5Gb/s full duplex channel supports plug and playSerial interface RS232Compatible with 16c550 UART standard and 256-byte transmit/receive FIFO. High-rate data transfer rate up to 250k/sec. Support RS-232 hardware move control. Data bit length: 5, 6, 7, 8Support MODEM modem signal CTS, DSR, RI, DCD, DTR, RTS, RS232 level conversionSupport remote wake-up and power management functionsEquipment Requirements:An available PCI-Expresscard slotApplication Areas:Industrial computer, communication, LED control, POS machine guest display, engraving machine, engraving machine (such as: pickup, map king, etc.), punch card machine, telephone program control machine, telephone billing device, serial mouse, brush machine use, POS Serial port printer, access control and attendance, single chip microcomputer, serial connection equipment, serial network/monitoring equipment, data acquisition system, POS terminal and industrial PC, parallel/print port application, additional I/O card-Serial/Parallel/USB, Embedded system-I/O expansion, PLC layout and simulation, etc. 99% of other 9-pin serial universal devices are supportedSystem Requirements: 1 x PCI-Express slot