I misplaced the power adaptor, and found one the fits in, but don't know if has the coorect powers output.. the power adaptor I have for this I rocks IR 4300 is an eblue mainstay with an output of 5.0 Vdc, 2.3 A
Computers & Internet - i-rocks - IR-4300 4-Port USB Hub
Answers & Comments
As per irocks page this is the power info for your device:
Power : Self Power : 5V
Adapter : (input)100~240 VAC , (output)5 VDC
you probably may want to check with someone at radioshack if the adapter you found matches above specs
info on your device can be found here