Using plug and play design, this hub is easy and convenient for you to use without driver and additional power. What this hub can offer you are total 4 interfaces of USB2.0, which can efficiently solve the problem of insufficient interfaces. It is constructed of aluminum alloy material. The length of this product is 8.5cm and width is 1.7cm. The hub is suitable for computer, mobile phone, laptop, etc. Item Name: Hub Material: Aluminum Alloy Transmission Rate: 390Mbps Port Number: 4 Compatible Model: USB, Type-C Features: Multi-function, Fast Transfer, 4 in 1 Size Details: Size: 8.5cm x 1.7cm/3.35" x 0.67"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hub