The Anker 4-Port USB 3.0 Unibody Aluminum Portable Data Hub is a sleek and portable USB port card. This hub features four USB 3.0 ports, allowing you to connect multiple USB devices to your computer. It is made of durable aluminum alloy, providing excellent heat dissipation and ensuring long-lasting performance. The hub supports data transfer rates of up to 5Gbps, enabling fast and efficient file transfers. It is compatible with Windows, Mac, and Linux operating systems and is easy to use. With this portable data hub, you can expand your computer's connectivity options and conveniently connect your USB devices on the go.