Feature:1. Fast: The USB 3.0 expansion card supports USB 3.0, and the speed can attain 5GB/S. Let you transfer data faster.2. 2 Ports: This pcie to USB adapter board has 2 USB ports, allowing you to connect two devices at the same time.3. Simple Operation: PCIE to USB hub is simple and quick to install, connect, and use, and is compatible with multiple computer operating systems.4. Stable: PCIE to USB adapter card is compatible with PCIE x1/x4/x8/x16, and the PCIE interface can provide stable power supply. pcie for usb can solve the problem of few usb interfaces, and the card is very small.5. Support Operating System: For windows xp 32/64/for windows 7 32/64/for windows8.1/for windows10.Specification:Item Type: USB3.0 Expansion CardMaterial: PCB, MetalBus Interface: PCI-E x1Compatible Slots: PCI-E x1/x4/x8/x16USB Interface: 2 USB 3.0Transmission Rate: USB 3.0: 5GB/S.Package List:1 x USB3.0 Expansion Card2 x Screw1 x Driver CD