All peripherals can only be used in Left side port. The right is good for cooling trays,etc. If you want "Items" recognized ,it has to be in left USB port only. I discovered this after 5.5 days of frustration with my it support group. Great unit but my "Life" got overheated by lack of positive input from Tech Support.,I had to think "Outside the box" for Solution to the issue. Have fun with this machine! Acer needs to put this in their Manual(s) for the Aspire One Cloudbook 11

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