Single 3.3V power supply. Internal buck regulator compatible with 1.2V core. Compliant with PCIe 2.0 Gen 1, x1 link, duplex simplex, 2.5Gbps in each direction. Support x1/x4/x8/x16 card slot bus interface. EEPROM interface configuration, data read and write burst operation. Global interrupt status register compatible with all eight UARTs. Up to 25 Mbps serial data rate. 6 multi-function input/output (MPIO), 6-bit general-purpose timer/counter. Sleep mode with wake-up indicator.Application areas: Next-generation point-of-sale system. Remote access server. Storage network management. Factory automation and process control. Multi-port RS-232/RS-422/RS-485 card.System requirements: Windows 2000/XP/Server 2003/Vista/Win 7/Win 8/Win 8.1 /Win 10, 32 or 64bit Linux2.6.27,2.6.31,2.6.32,3.x.x higherPCI Express: X1/X2/X4/X8/X16 slotEight independent UART channels, through:16550 compatible register set256-byte TX and RX FIFOProgrammable TX and RX trigger levelsFractional baud rate generatorAutomatic RTS/CTS or DTR/DSR hardware flow control with programmable hysteresisAutomatic Xon/Xoff software flow controlRS-485 half-duplex direction control output with programmable turnaround delayMulti-point automatic address detectionInfrared (IrDA 1.1) data encoder/decoderColour: greenMaterial: PCB+metalPackage Contents:1 * PCI-E XR17V358 PRO 8S multi-string I/O card1 * DB9 terminal line1 * Short iron sheetOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.