... vidicon,audio system,input equipment etc. high speed USB2.0 4 port hub, metal case, for scanner,digital camera,digital vidicon,audio system ... ,input equipment etc.Metallic Hub: 1) Expand 4 USB ports, supply up to 500mA current per port 2) Adopt the second age USB ... / Me / 2000 / XP, Linux 2.4 and Mac OS 8.5 or over version high speed USB2.0 4 port hub, metal case(Model#PG ...