USB HUB 1:brick 4 port hub 2:Plug and play, no external power needed 3:New design,good for promotion 4:Chinese Factory. USB HUB1:brick 4 port hub 2:Plug and play, no external power needed3:New design,good for promotion 4:Chinese Factory.- Color: White- Compatible with USB 2.0 specification in WindowsVISTA/XP/2000/ME/98/Mac OS 8.6~9.2/OS X~10.5 or later version systems- Transfer rate up to 480 ...