This is a PCI-Express card 7 * High-speed USB 3.0 interface expands when you need to use multiple external USB products at the same time, this Express card be the . ConformsTo PCI Express 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. USB interface could provide 5V2A power supply to the external device. With two power module, not need extra power supply. Supports Linux / XP / 7/8 / 8.1 / 10 and 32 bit or 64 bit WHQL certified driver Colour:black Material:PCB+Metal Due to different product batches, the appearance , which does not affect the use Package Contents: 1 * 7 Port USB3.0 PCI-E Card Only the above package content, other products are not included. Note: Light reflection 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.