4 port USB hubs
1) Fully compliant with universal serial bus specification version 1.1
2) Single chip integrated USB hub controller with embedded proprietary processor
Stereo speaker
1) USB stereo speaker powered by USB or External power supply
2) Inner USB stereo speaker suitable for listening internet radio or stereo music
Mouse pad
1) Black compact panel with smoothly movement which suitable for all kinds of mechanical mouse or optical mouse
2) Blue or seven-color light flashed around the pad
3) Dimension: L282mm x W222mm x H32mm
4) Allows matching outside power of DC5V 1, 000mA