First: Faster, Second: Fourfold.
USB 3.0 is the USB standard of the future. It has a bandwidth of up to 5 GBit/s. That makes possible a multiple of the transfer rates of USB 2.0. 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).