Description:The transfer rate of the USB 3.0 interface of this expansion card can reach 5 gbps, and it is backward compatible with USB 2.0 and 1.1.The USB interface can provide 5v2a power for external devices, and only two power modules are required, no additional power supply is required.Made of PCB and metal material, it is more durable and sturdy.The length of the product is 12cm and the width is 7.4cm.It is suitable for Linux and for Windows XP/7/8/8.1/10 and 32-bit or 64-bit whql certified drivers. Moreover, it complies with PCI Express standard version 2.0 and meets the general standard of Serial Bus 3.0.Item Name: USB3.0 Expansion CardMaterial: Metal,PCBSize Details: Size: 12cm x 7.4cm/4.72" x 2.91" (Approx.)Notes:This is a pci-express card high-speed usb 3.0 interface expandable, when you need to use multiple external USB products at the same time, this Express card will be the best choice.7a usb devices should connect to 7tlg at the same time.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x USB3.0 Expansion Card1 x CD Disk Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store