Features: 1.Multiport: Compliant with standard PCI express base SPEC 2.0, backward compatible with SPEC 1.1 1.0a, one PCIe x1 channel, Gen2 uplink port to four PCIe x1 channel Gen2 downlink ports. 2. ASM1184e PCI Express x1 conversion card, which can use standard and small PCIe expansion cards, and expand your PC through additional PCIe interfaces. The PC is powered by the attached 6 PIN 12VDC connector and for SATA 15PIN power supply. 3.Compatible System: The operating system is compatible with for Linux, for XP, for Windows 7, for Windows 8, for Windows 8.1, for Windows 10. 4.Plug and Play: Compatible with all major application operating systems in the market, simple installation, plug and play, and support for I2VDC interface for debugging. 5.PCB Material: Integrated 100MHz PCIe differential clock buffer, no need for additional clock buffer, short delay, PCB material, stable performance. specification:Item Type: PCI E X1 to 4PCI E X1 Adapter Card Material: PCB Main Chipset: For ASM1084e Bus Type: PCI Express x1 Slot Interface: 4 x PCIE X1 Card Slot (Grouped), 1 x USB3.0 to PCIe Connector, 1 x for SATA 15PIN Power Interface, 1 x 6 PIN DC12V Power Interface PackageList: 1 x 4 Port PCIE X1 Card Slot 1 x PCIE X1 Card 1 x USB 3.0 Cable 1 x Connecting Line Note1. Remember not to hot plug with electricity! Before operation, please cut off the power first, cut off the power first, cut off the power first; 2. The adapter card can be hot plugged only when the computer is turned off.