There is a power plug in but as the previous poster indicated the is no information on 1) that it is required and 2)where to get it or what its specifications might be.
Summary:
Very disappointed that even the sales reps didn't mention the power supply if it is required.
Require external power supply to run USB 3.0, which is not provided.
No Specs were given for the power supply so no way to get a compatible adapter. Besides power adapter cost another $30.
Summary:
Unless you are just looking for USB 2.0 with 3.0 capability, and don't mind getting an adaptor go for it.