Introduction: USB 3.0 hub compliant with USB 3.0/2.0 specification and with the stylish appearance. It is the USB hub for you easily connecting up to 4 USB devices to your computer such as an USB Graphic card USB digital TV storage docking digital camera or printers. It is streamlined sleek and compact design in the perfect solution for USB port expansion. Features: Up to 5Gbps data transfer rate. Hot-swapping feature allows you to connect/disconnect devices without powering down the system. LED Power On/Off Indicator. Plug and play No driver installation needed Brand new and high quality. This hub is lightweight and compact. You can tuck into a pocket in your laptop bag or carry-on which makes it easy for you to use USB devices anywhere when you use your laptop. Plug and play. Economic design. Electric current of the port reach 500mA. Independent of the overload protection. Back flow prevention circuit design in order to prevent electric current flow back to the device. Every port with independent control switch. Every port has LED power light. Can be driven 500G mobile hard disk without external power supply. Supports Windows 7 / Vista / 2008 / XP / 2003 / 2000 / Mac OS(10.X or above) / Linux.