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 ... over current protection circuits6) Support compatible USB 2.0, full speed up to 480Mbps 7) Support OS: Win 95 OSR2 / 98SE / Me ... and Mac OS 8.5 or over version high speed USB2.0 4 port hub, metal case(Model#PG-USB-Hub207)