1. No need to drive, plug and play 2. Adapt to all external USB interface devices 3. Hub + external stereo sound adapter, you can listen to music during data transmission or mobile phone charging 4. Number of interfaces: one for three 5. Input: 5V / 100mA 6. USB support: USB3.1/3.0/2.0/1.1 7. Transmission rate: 5Gbps 8. Cable length: 1.2m 9. Size: 81.8x49x18mm 10. Net weight: about 41g