Sleek compact design and high performance make this hub an excellent companion for busy user onto the go. Rapid increase 4 ports USB 3.0 to your computer with Super-Speed USB 3.0 interface. Throughputs have 10 times faster than USB 2.0 standard and backward compatible with current USB device features. It can be used on USB 3.0 HDD, High-resolution camera, video surveillance cameras, digital video cameras and variety of audio and other peripheral devices. USB Fast Charging Function Product supports BC2.1 (Battery Charging Specification) individual mode for power enable and over current detection on one port with Mark for fast charging function. The current limit of USB 2.0 is 500mA for configured devices, and the current limit of USB 3.0 is 900mA for configured devices. Depending on the device, fast charging implementations typically feature current limits between 1000mA to 1500mA. Product will enable Fast Charging Mode when your computer is in sleeping Mode or turned off. Features * 4 ports Super-Speed USB 3.0 interface support transfer rates up to 5Gbps * Backward Compatible with USB 2.0/USB 1.1 and USB 1.0 * Support hot swapping, Plug & Play to reach user friendly * Led indicators display the status of each port * Provide one port maximum 1.5A charging when computer in sleep mode or turned off * Build in surge protector in each port to the computer safety System requirements * Windows XP, Windows Vista, Windows 7, Windows 8 * Mac OS Package contents: * USB 3.0 4-port hub * USB 3.0 cable * Power adapter Note: Some USB 3.0 host card require installment of newest driver for the adapter to reach optimal USB 3.0 compatible performance. (recommended)