Description: Compact and Portable: This USB-C expansion dock is small in size (9.5cm long, 2.8cm wide, and 1cm high), making it easy to carry without any burden. It's suitable for daily use. High-Speed Data Transfer: With its data transmission speed, this USB multi-port hub allows you to quickly transfer large files with ease. Multi-Functional Dock: The hub supports the connection of various devices such as U-disk and keyboard, enhancing your laptop's functionality. It also supports mouse operation and U-disk expansion. PD Interface for Powerful Charging: Equipped with a PD interface, this hub supports high-power charging to ensure long-lasting battery life for your devices. Sturdy Aluminum Alloy Shell: The hub features a sturdy aluminum alloy shell that not only provides heat dissipation but also resists wear and tear, ensuring long-term use. Specification: Material: Aluminum Alloy Size Chart: 9.5cmx2.8cmx1cm/3.74inchx1.10inchx0.39inch Package Includes: 1 Piece USB C Hub Note: 1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping!