The Kanex 4 Port USB 3 Power Hub easily adds four SuperSpeed USB 3 ports to your computer, enabling you to transfer movies and music as well as move and backup data at speeds up to 10 times faster than USB 2.0. The hub is backward compatible, hot swappable and can charge select devices. No set up required. Simply plug and play. Super Speed Use the 4 port USB 3 Power Hub to connect up to four devices with SuperSpeed transfer speeds of up to 5 gigabits per second. SuperSpeed USB 3 enables users to connect their USB 3 external hard drives, digital cameras, MP3 players and more. Plug and Play The Kanex 4 port USB 3 Power Hub works right out of the box. No set up or drivers required. Full Power It includes a 4 AMP power supply to provide 900mAH power to each port for power hungry USB devices like external USB storage. It even has enough power to recharge 4 iPhone simultaneously. Product Highlights Up to 5Gbps Transfer Speeds USB 3.0/2.0/1.1 Compatible Plug and Play/No Drivers Required Included in Package Kanex 4 port USB 3 Hub 5V/4 amps International Power Adapter SuperSpeed USB 3 A Micro B cable