Features: 1.The PCIe parallel port card is a high?performance 32?bit local bus that supports the PCI 2.1 with a transfer rate of up to 1.5MB/S. 2.The expansion card supports plug and play, no switch or jumper, easy to set up with software. 3.Using high?speed I/O controller (16C550C or compatible for UART), it can effectively exchange, detect and provide signals. 4.The PCI expansion card is mainly used for computer motherboards to realize various external functions. 5.The PCI expansion card is suitable for desktop computers and supports for Windows98/2000XP systems. specification:Item Type: PCI Express Card Support System: For Windows98/2000XP How to Use: Plug and play installation is complete, just import the driver PackageList:1 x PCI Express Card 1 x CD NoteThis product is a desktop PCI?E expansion card, which requires a free PCI?E slot on the motherboard to be installed and used, and cannot be installed and used on the PCI slot.