The 10th port, located on the end of the hub, is capable of charging your iPad and features an On/Off switch. iPads are typically unable to charge from a computer's USB ports, so the Satechi 10-Port USB 3.0 Hub provides unique functionality compared to similar hubs.
We recommend that no more than three external hard drives be connected to the 10-Port USB 3.0 Hub at one time. This will provide maximum efficiency of the 10-Port USB 3.0 Hub because it contains three chipsets (one chipset can operate one external hard drive efficiently). The three external hard drives should be connected to the first three ports on the hub (closest to the power source).