Warning !!!! this hub made in HonKong by trade wondership at £4.17 with power supply, The power supply provided connects 5Volts to the incoming USB connector! as well as it is common to all USB sockets, If your computer is connected via the USB cable provided DC 5 Volts is fed into the computer from the power supply provided!!!! This could cause catastrophic damage to any computer attached via this cable!! as this 5 volt supply is very poor and liable to failure!!! DO NOT USE THE POWER SUPPLY PROVIDED! The hub 5 volt input socket is live to all USB connections!!