USB 3.0 PCI adapter PCI e to 7 ports USB 3 expansion adapter Card USB3 PCIe PCI-e x1 controller converter for DesktopThis is a PCI- card 7 * High-speed USB 3.0 interface expands when you need to multiple external USB products at the time, this card will be the best choice.ConformsTo PCI standard version 2.0.Meets Universal Serial Bus 3.0 standard.USB 3.0 interface Transmission rate could reach 5Gbps, downward with USB 2.0 / 1.1.A USB device to be connected simultaneously 7tlg.USB interface could 5V2A supply to the external device.With two module, not need extra supply.Supports Linux / Windows XP / 7/8 / 8.1 / 10 and 32 bit or 64 bit WHQL driverColour: blackMaterial: plastic + metalPackage Contents:2 * 7 port USB3.0 PCI cardOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.