Features: 1.AX99100 Chip: PCI E to RS232 serial adapter card adopts stable and reliable chipset AX99100 with signal enhancement chip. 2.High Speed Transmission: PCIe to RS232 serial host controller card is efficient and compatible, with stable performance and high speed transmission. 3.Application Areas: Serially connected equipment, serial internet/monitoring equipment, data acquisition system POS terminals and industrial PCs, I/O expansion of embedded systems. 4.Wide Compatibility: PCI E Serial Adapter Card supports operating systems for Windows10/8/7/Vista/XP/2000, for Linux,for DOS, for Windows Server 2003. 5.Interface: PCI E serial host controller card, PCI Express 1X slot, suitable for PCI?E x1, x4, x8, x16 slots. specification:Item Type: PCI E to RS232 Serial Adapter Card Material: PCB Chipset: AX99100 Port Number: 1 x RS232 Serial Port Interface: PCI Express 1X Slot Applies To: PCI E X1,X4,X8,X16 Slots Supported Operating Systems:For Windows10/8/7/Vista/XP/2000, for Linux,for DOS, for Windows Server 2003 Bezel Length:Approx. 120mm / 4.7in Operating Temperature Range: -40 to 85C PackageList:1 x PCIEtoRS232SerialAdapterCard