1. Material: Aluminum Alloy
2. Input: USB 3.0
3. Output: USB 3.0 x 1, USB 2.0 x 2
4. Transfer rate: USB3.0: 5Gbps, USB2.0: 480Mbps
5. Size: 55 x 25 x 20mm
6. Rated power: 5V/500MA
7. Small and mini, easy to carry
8. Plug and play, no need to install the program driver, easy to use