Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si Conforms To 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 certified driver Size: 7 USB3.0 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 best . Colour: black Material: PCB+metal Size: 120 x 74 x 18mm Package Contents: 1 x 7 Port USB3.0 PCI Card 1 x Driver CD Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.