a great product, too good price / quality ratio! very silent, it works like an internal hard drive, therefore you do not even need to turn it off. The time transfer / copy of another disk is support for this excellent and without problems. I have not tested the eSATA-300 function Ok, an on / off button and an eSATA cable are a plus! Compared to my old Lacie 160GB disk, there is no picture! A congratulations to Amazon.com for the delivery period as expected, fast as usual. Warning: before formatting in NTSF, think back to another medium, the doc / programs delivered on the same disk it!