【PCIe to USB Extension Card】The PCIe extension card extends 7 USB 3.0 Type-A ports from a PCIe 3.0 slot, upward compatible with x1, x4, x8 and x16 slot..【High-Speed Transmission Rate】Three USB Type-A ports share 5Gbps bandwidth together, and the rest four ports share another 5Gbps bandwidth, with total bandwidth up to 10Gbps. Each port supports transmitting data at a rate up to 5Gbps when used solely. Note:The actual transmission speed is limited by the setting of the device connected..【Widely Compatibility】The card is compatible with Windows 7/8/10/11 (32/64 bit) and Mac OS 10.8.2 and above. The card only requires installing a driver which you can download from our CD driver, when operating on Windows 7. Note: Windows XP,/Vista/7, Server,requires driver installation, Windows 10/11 and Mac OS and Linux don't need drivers..【Stable to Use】The PCIe card is simple to install and draws power directly from the PCIe interface.The USB Type-A ports offer power up to 5W and the USB Type-C ports up to 15W. All ports feature short-circuit protection. Quick and easy installation, a simple solution for connecting to and using USB 3.0 devices on your standard desktop.【Packing list and Lifetime Warranty】Packing list：1x USB 3.0 PCI-E expansion card, 1x CD driver, 1 x installation screws, and 1x user manual. You can get a 360-day worry-free warranty and friendly customer service. If you have any questions, we will help you solve the problem when you need it, and if it can’t be solved, we will provide a refund and no return is required.