You can easily connect many USB devices using this AC-power Hub! Guaranteed your devices will never run out of power.
Add 7 USB 3.0 Hi-speed female ports
Full compliant with USB 3.0 specifications
Features on/off switch for all 7 USB 3.0 ports
Backwards compatible with USB 1.1 & 2.0
Support data transfer rate of 5 Gbps
Individual port over-current protection
LED light indicator
Support both bus and self-powered (adapter included)
Power adapter included, compatible with your country
Plug-and-play installation

The number of USB device you could charge at same time depends on the input voltage. A 5V 2A Charger we send you as an Urgent backup can charge 2~3 USB 2.0 device at same time. If you are using the USB 3.0 port to charge device, then it also depends on the input source. A standard USB 3.0 power can charge up to 7 USB 2.0 device at same time! The data transfer ability should refer to the charging ability.

Color:Black
Power supply: DC 5V
LED: Blue(Power)
Cable Length: Approx.60cm/24inch
Dimension: Approx.15.5(L) x 4.3(W) x 1.7(H)cm
Support OS : Windows XP/Vista/7/8, Mac 9.1 above or 10.2 above, Linux 9
Maximum Data Transfer Rate: (5 Gbps)USB 3.0, (480 Mbps)USB 2.0,(12 Mbps)USB 1.1

1 x 7 Ports USB 3.0 Hub
1 x USB cable
1 x Power Supply Adapter (US Plug)