Note：The hub only work after you plug the power adapter.

MULTI USB PORT EXPANDER: Our USB Hub has 10 USB Data Transfer Ports, which makes it very easy to connect multiple USB devices to your PC or laptop simultaneously, such as keyboard, mouse, card reader, webcam and more. CHARGING PORTS: This USB expansion hub come with a fast charging port allows to charge cellphones, tablets, camera and speakers and more, and automatically detects and delivers the optimal charging current. INDIVIDUAL ON/OFF SWITCHES: This 10 port USB splitter has a built-in ON and OFF switches with LED indicators for each port. You can turn on/off the separate USB port without having to unplug the whole hub. HIGH SPEED DATA: This 3.0 USB Hub provides up to 5 Gbps data speed, which means you will transfer an HD movie in seconds, and it is backwards compatible with USB 2.0/1.1. WIDE COMPATIBILITY: It is compatible with any USB 3.0, USB 2.0, USB 1.1 and USB 1.0 devices. It is also compatible with most operating systems: Windows XP/2003/Vista/7/2008/8 & Mac/MacBook/MacBook Air/MacBook Pro and more. It is a great accessory to have in a study, school or in your office.