Does what it says on the box. A good looking unit, only marginally larger than the old 10TB hub version I had. Has a fairly open top design which seems good for heat dissipation. Noise and vibration is a complete non-issue. I was slightly worried about this given one of the other reviews here. I put it on a thin foam rubber pad (although that's probably not needed) and have it under my desk and really don't hear it at all. I'd definitely recommend it. I'd have brought the 18TB version but that seemed a bit steep in price to me.