With the democratization of the USB, we find ourselves quickly out of USB ports, whether on laptop or even on fixed pc, well that the effect is noticeable more strongly on laptops. According to the uses and preferences, we can easily count 1 to 2 USB ports busy for the couple keyboard/mouse, one possibly for the webcam for the printer, one for a USB stick for smartphone charging, one for headphones for bluetooth, wifi, etc… In short, we find ourselves very quickly short! Wired or not, it will take almost in all cases, use USB ports! There is not twenty thousand ways to solve these problems:
- you change PC, but in this case, you'll have much more USB ports
- you add a PCI-E card on the back of your pc fixed, according to the map, you can add 7 without problems (this is the max that I could see), but this applies only to the Office Pc. You can also add berries to the front, but this solution is not suitable for laptops…
- you use a USB Hub
One of the USB Hub, it is the CB – H17 of Aukey: USB 3.0, it has 6 ports USB 3.0, 1 USB charging to charge your smartphone/Tablet/other device, and finally, an Ethernet port! 
Characteristic of the CB – H17 of Aukey
- Hub USB 3.0
- 6-port USB 3.0
- 1 2.4 charging port
- 1 Ethernet port
- A button ON / OFF
- External power supply
- Windows compatible
Test of Aukey CB – H17
The first thing to say is that it's a hub powered by external power supply. Really too bad… because even for a USB key for 5 min, you are forced to connect 2 cables: the mains cable and the USB 3 cable! I prefer a hub taking first port in 3 USB self-powered, and if insufficient energy, to ask after an external source! I guess that the cause which obliges to put every time the socket is the fusion of 2 features: USB charging port and the Ethernet card. Except for energy, this hub is very well made his work. The Ethernet is perfectly detected by Windows, the USB charging port charging well around 2 A. And of course, the USB ports are USB 3. Moreover, these are numbered… from right to lef
t! On the slice, there is a button ON / OFF, which is very appreciated and port jack for food, which is less. Beside the USB port for data transfer and the Ethernet port. 
Conclusion
A very good hub USB 3.0 that does its job perfectly! Gripe that can make it, it is that you have to feed it via a wall outlet Jack to use it. Link: in http://www.amazon.fr/gp/product/B00QWYYYPK/ 