... system,input equipment etc. high speed USB2.0 4 port hub, metal case, for scanner,digital camera,digital ... 1) Expand 4 USB ports, supply up to 500mA current per port 2) Adopt the second age USB controller 3) No ... play 5) Internal over current protection circuits6) Support compatible USB 2.0, full speed up to 480Mbps 7) ... or over version high speed USB2.0 4 port hub, metal case(Model#PG-USB-Hub207)