... high speed USB2.0 4 port hub, metal case, for scanner,digital camera,digital vidicon,audio system,input equipment etc. high ... speed USB2.0 4 port hub, metal case, for scanner ... age USB controller 3) No external power supply 4) Driverless, hot plug and play 5) Internal ... XP, Linux 2.4 and Mac OS 8.5 or over version high speed USB2.0 4 port hub, metal ...