Works like a charm. This little device is worth its weight in gold for any IT person. But its 4pin>>Sata power cable is complete junk. Break off its 4 pin side casing and insert them in one by one. Out of 4 new sets of these all 4 4pin>>SATA power cables were junk, and my personal one arived completely falling apart, but beware because the pins are only held on by 2 tiny threads of metal, so it will not last, buy another one. This is what cost it 2 stars. But other than that it is great, but cost after buying a power cable and this currently makes it more expensive than its competitors.