I use this at home and the connection it makes to my laptop is not 'firm', it can be jostled and disconnected with a slight nudge. Also, I am not able to charge devices (like my phone) through it, cannot run an external hard drive through it, and my ipod won't sync through it. Only useful for my printer and mouse.
Note that I have a Mac laptop, but electronics like USB expansion hubs should be beyond such things these days.
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