With this hub you can use the fast USB 3.0 for four devices. With 5 V power supply ?"active hub".
USB 3.0 is downwardly compatible, it fits also USB 2.0 cables and devices (with their transfer rates).
The USB charge port ( 5 V, 2.4 A) meets the new USB battery charging specification (BC 1.2) and it can charge all the corresponding mobile devices such as smartphones, tablets, digital cameras and rechargeable batteries (i.e. power banks).