Instant expansion and SuperSpeed Syncing-This atolla USB 3.0 hub can instantly expand 1 USB 3.0 port to 7 external USB 3.0 data ports for keyboard, mouse, printer, hard drivers and more USB devices, syncing data at blazing speeds up to 5Gbps in no time. Smart charging-There are also 4 USB 3.0 smart charging ports help to charge your mobile phones, tablets, cameras and more devices, with the 12V/4A power adapter can provide charging power up to 2.4A.