4 port USB powered hub - will transfer rates up to 5Gbps (500Mbps) to allow data to move quickly between devices. Compatible with smart TV, you can plug wired mouse/USB Flash Drive/external hard Drive in this USB hub and connect it to smart TV. No drivers required, Plug and play. No drivers required, Plug and play 1 Smart charging port - at the bottom for charging your device. Built-in surge protection and over-current protection, recognize your device automatically and provides a corresponding current. It will remember which ports are switched on or off when powered down and keep that configuration at power up