Features: USB2.0 HUB, provide 7 USB interface Built-in current overload and short circuit protection device The highest rate of up to 480Mbps, backward compatible with USB 1.1 / 1.0 Computer automatic identification installation, no drivers : windows 95/98/ME/2000/XP/Vista , 8.6 or later(Under Windows 95/98 systems need to install the driver) With LED lights, work status intuitive visualization. Plug and play, easy to use Voltage: 5V Current: 500mAh Humidity: 10% - 90% Working temperature: -20C - 75C Storage temperature: -40C - 85C Material: ABS ： Black, White Weight: 76g Size: 165x36x22mm Cable Length: Approx. 46cm Package Contents： 1 x 7-Port USB 2.0 Hub a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a