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.