This 7 port & 1 charging port USB hub is the ideal companion for laptop or desktop computer， specially great for notebooks which come with only a few ports when you need to attach many USB devices at the same time， such as a printer， card reader， mobile phone， MP3/MP4， thumb drive， mouse， keyboard， or an external hard drive. Expand your computer's connectivity with this USB hub to improve your working efficiency.  Features:  USB 3.0， backwards compatible with USB2.0 and 1.1.  7 ports and 1 charging port， 8 LED indicators， and power switch.  No need adapter and no need driver program.  Plug & play and hot swapping capability.  USB 3.0 reach a theoretical 4.8G Mbps transfer speed.  Each port with over-current protection and overvoltage protection.   Reserves a power connector for power supply when insufficient output.  Low temperature and power consumption.  System support Win XP/2000/ME/Vista/7，8 MAC OS 8.6， Linux 2.4 or above.  Note: Charging port only for charging， no data transfer function. And it has a faster charging speed than other 7 USB port.  Specifications:  Input: USB 5V/1A  Output: 7 * USB 3.0 & 1 charging port  Theoretical transfer rate: 4.8Gbps  Color: White and yellow  Material: ABS and aluminum  Cable length: 75cm / 29.52in  Item size: 18.7 * 4.9 * 2.3cm / 7.36 * 1.92 * 0.90in (L * W * H)  Item weight: 164g / 5.80oz  Package size: 24.5 * 13 * 3cm / 9.64 * 5.11 * 1.18in (L * W * H)  Package weight: 218g / 7.69oz  Package List:  1 * USB HUB