I tested the USB 3 speed hub by connecting it to a USB port 3 on my PC and by connecting an external hard disk 2.5 inches (USB 3) on the hub.
The result is 133 MB / s read and 128.6 MB / s write (using CrystalDiskMark). I have the same numbers if I connect my external hard drive 2.5 inch on the PC without using the hub.
But I must admit that the most interesting is the ethernet adapter (RJ45). I used it on a Macbook pro and was immediately recognized. So you no longer need to go through wifi to use the Internet as just plug the hub (via RJ45) on your network!
It's just really convenient.
This hub is really for a multi use and having taken over the network is truly an undeniable advantage.