Adds 2 -232 serial port (Standard -232 DB9 male serial port compliant) through an available PCI Express .Application area: Industrial computer, communication, LED control, POS machine display, engraving machine, cutting plotter, punch card machine, POS, access control attendance.WCH382L chipset, Connects more serial device to your computer easily. PCIe X1/X4/X8/X16 for installation, Rugular and low-profile bracket include for 4U/2U frame.Faster data rates up to 1.5Mbps for parallel port.Supporting SPP/PS2/EPP/ECP modes and centronics interface. Compliant with Single- (x1) PCI-Express specification revision 1.0a.Operating System: Windows 98/Me/NT4.0/2000/XP/Vista/Win7/Win8/Server2003/Server 2008/LINUX/DOS.Colour:greenMaterial:plasticPackage Contents:1 * Pcie CardOnly the above package content, other products are not included.Note: Light 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.