This is a 7-Port Charging hub compliant with USB 2.0 Specification. It complies with USB-IF Battery charging specification 1.1. Either one of two front USB ports can provide high power recharge (1.5A) function. It is the USB Hub for you easily connecting up to 7 USB 2.0 devices to your computer, such as a MP3 player, digital camera, or printers. It is streamlined, sleek and compact design is the perfect solution for USB port expansion.