Hello There! All those who want to set this product, let me say that it works ... but with some limitations. Restriction No.1 (here is my fault ... who can read is a clear advantage): The adapter is powered via a USB port with power. No.2: 3 hard drives connected - only 1 worked - annoying as no detailed description included ... So after much compare the hard drives and the happy coincidence that 2 of the plates apart from the size were identical, I found out that This adapter necessarily a jumper on the board requires, which they defined as a master or slave. Without this (Cable Select) is nothing at all !!! Otherwise works the part, so 3 stars! (1 deduction for power supply by the back panel through and 1 because of the lack of description) I hope I have some help with that! LG Stefan
