The USB - Hub is used daily by me hang 3 USB - devices to it (mouse, keyboard, Ext HDD.) - The 4 port would I want to use my wireless headset, but after several forum entries I've found that NOT EVERY USB - device of HAMA is supported and if so (so it was with me) then only limited use - my headset has real dropouts, which In - and Output As ... Too bad ... Otherwise, the USB - Hub of the price / performance to see highly recommended! If USB devices should not work at first - then try each port - has availed what with me, but why this is relevant - is a mystery to me. That's why 1 star deduction