The TP-Link USB 3.0 7-Port hub is perfect for anyone who has a computer with only one or two USB ports, and wants easier access toadditional ports without having to switch between devices. A dim white LED indicator on the power button helps visulaize the connection status and similarly 7 dim white LED indicators beyond each USB port also indicate whether the devices are properly connected. It has a sophisticated circuit design with multiple protections for your devices against over-heating, over-current, over-voltage and short circuit. A built-in surge protector keeps both your devices and data safe in the process of transferring data.