Exar Chipset: XR17V354PCIe 2.0 Gen 1 compliantx1 Link, dual simplex, 2.5Gbps in each directionSupports x1, x2, x4, x8, x16 PCIe Bus connector keys600W surge protection, 15KV ESD protection for serial portsWorking mode: asynchronous working,point-to-point or point-to-multipoint 2 wires (half duplex) 4 wires (full duplex)Transmission distance: -485/422 port:1.2km (300bps-921600bps)Sleep mode with wake-up IndicatorTransmission media: twisted-pair cable or shielded cableDirection control: Adopt the technology which automatically controls the data-flow direction,automatically distinguish and control the data-transmission direction;UART interface support for 7 or 8 data bits,1 or 2 stop bits and even/odd/mark/space/noneFlow control none,hardware and xon/xoffLoad capability; Support point-to-multipoint transmission. Each converter can connect 32 -422 or -485 interface equipmentAPPLICATIONSNext generation Point-of-Sale SystemsRemote Access ServersStorage Network ManagementFactory Automation and Process ControlSystem RequirementsWindows Server 2003, 2008, 2012Windows XP, Vista, 7, 8Linux 2.6.27, 2.6.31, 2.6.32, 3.x.x and newerPCI Express-enabled system with an available PCI Express slotColour:greenMaterial:plasticPackage Contents:1 x Pcie Adapter Card1 x Serial Cable1 x Low Profile BracketOnly the above package content, other products are not included.Note: Light reflection 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.