Sentey Ls 6140 10 USB 3.0, 2.0 or 1.1 devices to any USB 2.0 or 3.0 capable computer / 12V / 4A High Power Adapter and Oxygen-Free Copper Core One 5V/2.1A charger port / Three VL812 USB3.0 controller inside easily add 10 No need driver Compatible with Mac, Windows, and Linux systems, LED indicators Transfer rates up to 5Gbps, Backwards compatible with all USB 2.0/1.1 devices and hosts Double Foil Shielded / Twisted Pair USB 3.0 Cable included