We all have, more and more USB devices, whether it’s external hard drives, the USB keys, the mouse/keyboard, webcam, see even to charge another device. On a fixed PC you have often not bad USB port but for a laptop it is a different story, in the best of cases there are 4. Add USB ports can give you extra convenience and do not need of plugging and unplugging your devices all the time. In the case of a fixed PC, we can always add a map that adds USB ports, it is a PCI-E card. However the majority of his cards have between 4 and 6 ports. In addition this solution is not viable for a laptop. The only solution that is suitable for all PCs, laptops, and fixed is the USB HUB, it is increasingly common to have ranging up to 10 USB ports. Among these HUBs, there is the Super Speed Aluminium 10 ports USB 3.0 powered HUB of AUKEY (CB – H6). 
Characteristics of the CB HUB – H6
- While aluminium and base plastic
- Hub USB 3.0
- 10 USB 3.0 ports
- External power supply
- Windows/Linux/Mac compatibility NOTE: Users of Mac OS X Lion 10.7.4 will upgrade to Mountain Lion 10.8.2 or more to ensure a stable connection.
- Size: 183 * 68 * 35 mm
- Weight: 193g
- Speed up to 5Gbps
The test
I’ll start with a small caveat. The product is very good but requires mandatory power, if you want a 10 USB 3.0 powered HUB, but not necessarily if you do not add too much light devices, turn to another model. I think that this choice has been done to ensure its functioning in all circumstances, even if you plug 10 devices including hard drives, it ensures a stable supply of all ports. For me, I tested it with 5 hard drives simultaneously with transfer on each of them. There been no error, the cumulative flow was 40 MB/sec from Windows 8.1. The result is similar to other USB 3.0 HUB 10-port that I have been able to use. It does so much his job, the transfer speed with parallélisassions is correct, there is no error the first tests, even when transfers occur in both directions. It also has a LED which flashes when there is a transfer of data. The HUB is provided with its AC adapter, a USB 3.0 cable to connect it to the computer and an instruction manual. 
As the HUB is powered when you turn off the computer, it remains powered and peripherals such as mouse, keyboard remain so also live. A button ON / OFF could be fine, however disconnect the power to the HUB will have the same effect and is not much more binding. A point of saw aesthetic, this HUB is also well done, color silver and aluminium, the USB ports are side to side and enough spaced to connect several USB sticks without leaving space between them. Another HUB USB 10 ports have their distributed all around ports, so there is a matter of preference utilization. In this case I find that access to the USB ports is simpler for an office and so I prefer this configuration. Under its base there are two non-slip wide glides which ensures a good view on a desktop for example.
Conclusion
If the required external power supply doesn’t bother you, this HUB is a very good HUB and does the job that asked. Aesthetically it is no more annoying on a desktop for example. A button ON / OFF could be a plus, with other HUB at the same constructor have this option. Link: in http://www.amazon.fr/gp/product/B00L29AC9W/ 