1、Full Duplex Channel: 2.5Gbps PCIE bus supporting full duplex channel. Compliant with Single Lane (x1) PCIExpress Specification Revision 1.0a. 2、Interface Slots: PCI Express x1 interface (also for PCIE x1, x4, x8, x16 slots). Two 9 pin RS 232 serial ports. 3、Support System: PCIE serial card supports operating systems for Windows10, for Win8, for Win7, for Vista, for XP, for Win 2000, for Linux, for DOS, for Win Server 2003. 4、AX99100 Chip: Allows to easily connect more serial devices to your computer. Stable and reliable chipset AX99100 with signal enhancement chip. Supports remote wake up and power management functions. 5、Application Areas: Serially connected equipment, serial net/monitoring equipment, data acquisition system POS terminals and industrial PCs, I/O expansion of embedded systems.