FEATURES: 
1. 4-port hub，Usb 2.0 high speed interface, supports transfer rate up to 480Mbps. 
2. backwards compatible with USB 1.1 specification. 
3. plug-and-play, support hot swapping function. 
4. two rotatable ports, easy to connect multiple devices and large USB devices.
5. Colourful design
6. 180° turnable design (Each Port)
7. Low power consumption
8. Support Windows 98/98SE/ME/2000/XP/Vista