1. Super speed USB 3.0 4-port hub each port speed up to 5Gbps 3-port USB 2.0 hub one port quick charging; 2. 8-Port hub with independent switch energy saving and environmental; 3. With power indicator for each port convenient to use; 4. Comes with 60cm USB data cable convenient to use and portable; 5. Smart charging 1-port USB built-in 2A / 1A automatic adjustment chipset control the large / small current supply according to the cell phone; 6. Reserved external power connector when using large feature USB devices can be connected to an external power supply to increase supply at any time.