With this hub, the fast USB 3.0 can be used tenfold. USB 3.0 is backward compatible, making it suitable for USB 2.0 devices and cables (at their speed). The USB charging port (5 V / 2.1 A) meets the battery charging specification (BC 1.2) and provides a convenient way to charge smartphones, tablets, digital cameras, and batteries (so-called power banks), including a 12 V power adapter - active hub.