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