DKnight USB 3.0 7-Port Hub + 5V 1.5A Charging Port with 5V 3A Power Adapter Easily add 7 USB 3.0 SuperSpeed ports to your PC and enjoy data transfer rates of up to 5Gbps for faster sync times. Any 2 ports could act as a charging port (1.5A) offers enough current to charge either a smartphone or a tablet at high speed. Lightweight, "power-bar" design effectively saves space. Blue LED indicates usb3.0 operation. Designed with a built-in surge protector to keep your devices safe. Supports hot swapping. No installation of drivers required for Windows XP / Vista / 7 / 8 or Mac OS X 10.2 and above. Package contents: Dknight 7-Port Charging Hub, 5V / 3A power adapter (with 5.3 ft cord), USB 3.0 cable (2.3 ft). Free lifetime technical support and 12-month manufacturer's warranty.