Features:100% brand new and high qualityWide Usage: The PCI-Express I/O card uses the latest PCI-Express interface as the expansion bus, the standard interface of which the most common PC desktop system in the market is widely used.Convenient for latest motherboards are no longer to come with any or enough number of legacy serial or parallel ports.Expand the system with the additional serial and parallel ports for connecting their external peripheral devices. This PCI-Express I/O card offers superior performance and unmatched data transfer rates, which is also an ideal solution for the industrial automation applications.Speed: Single-Lane(x1) PCI-Express with throughput up to 2.5Gbps.Supports Windows 98,ME,NT4.0,2000,XP 32-/64-bit,Server 2003-2008 32-/64-bit, Vista 32-/64-bit,Windows 7 32-/64-bit, and linux.Package Includes:1PC x mini PCIe CardSpecifications:Product name: Mini pci-E to RS232 Serial Port CardNumber of interfaces: 2 RS232 Serial ports, 1 Parallel PortApplicable slot: mini PCI-EBus bandwidth: about 6Gb/sProduct size: approx 5.3x3cm/2.09x1.18inSerial Port(RS-232) Interface.Compatible with 16C550, 16C552, 16C554 AND 16C750 with enhancementMaximum data rate 230.4Kbps on each portSupports 5,6,7, or 8 data bits serial formatSupports Even, Odd, No parity, space 0 & mark 1Compliant with PCI-Express Base Specification Revision 1.1Optional jumper for setting RI, +5V, or +12V on pin 9 of each serial port DB9 connector(Special models)note:There might be little error of size for manual measurement.The colors deviation might differ due to different monitor settings, please kindly understand.