Features: - Easy to Install. - USB 3.0 supports transfer rates of up to 5 Gbps. - Compatibility: Works great with Windows XP 32/64, Windows 7 32/64, Windows8, Windows8.1, Windows10. Specification: Bus Mode: PCI-E x1 Compatible Slots: PCI-E x1 / x4 / x8 / x16 USB Interface: 2 USB3.0 ports Transmission Rate: USB3.0, 5Gb / s Support Operating System: Windows XP 32/64, Windows 7 32/64, Windows8, Windows8.1, Windows10 Package Weight: 80g Quantity: 1pc Package included: 1 x PCI-E To USB3.0 Expansion About this item Extend with 2 USB3.0 19pin connector (can expand 4 USB 3.0 ports) from desktop PC which with one free PCIe slot PCI-e to Internal 20Pin Male Ports Adapter SuperSpeed USB 3.0 The super fast USB 3.0 ports will provide 5Gbps max data(total) transfer speed for video,audio,photos or files [Compatible Slots]: PCI-E x1 / x4 / x8 / x16 [Compatibility]: Works great with Windows XP 32/64, Windows 7 32/64, Windows8, Windows8.1, Windows10 [100% Satisfaction]: If you have any question, please feel free to contact us, we will help you within 24 hours on week days Extend with 2 USB3.0 19pin connector (can expand 4 USB 3.0 ports) from desktop PC which with one free PCIe slot PCI-e to Internal 20Pin Male Ports Adapter SuperSpeed USB 3.0 The super fast USB 3.0 ports will provide 5Gbps max data(total) transfer speed for video,audio,photos or files [Compatible Slots]: PCI-E x1 / x4 / x8 / x16 [Compatibility]: Works great with Windows XP 32/64, Windows 7 32/64, Windows8, Windows8.1, Windows10 [100% Satisfaction]: If you have any question, please feel free to contact us, we will help you within 24 hours on week days