Mac Book Air USB problem

A

alexk

Registered
Hello

I have a macbook air that is around 8 months old. I have noticed recently that the USB port only seems to work with devices that have their own power source (eg cameras and printers), but that if I connect to eg my external disk drive, or a USB memory stick, there is no response. To be clear, the disk drive won't even accept a disk (presumably through lack of power) and neither of these devices can be recognised in Finder.

Any ideas/suggestions appreciated.

Thanks

Alex
 
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