USB3 recognizes all that my PC recognizes

4 USB3 ports recognizes all that my PC recognizes (External Disk 1TB Western Digital, Sony camcorder, USB Key various).
The transfer rate is aprciable is certainly modeled on that of my PC (also USB3) (it is 40 to 80 / 90MB per second transfer).
One star less because despite an external power supply must connect to to get good rates, it does not recharge my Nexus 7 nor my Xperia Z.
The 8-port two charging ports dedicated I believe. So opt for this one.
PS: also works on my feet rasperri to add ports (USB2 but, do not push huh), normal)