The cable does electrical terms what it is, and the way it is: I use it to connect Equipped internal SATA hard drives to an external eSATA port without any recognition or transmission problems. Tip for reviewers who have recognition problems: some machines are sensitive to the switch-on / clip-on order - there possibly try. This is necessary, depending on the used port (or controller / software, or behind it), but independent of the cable used! For mechanics: the cable without detent mechanism (but also on the image can be clearly seen) and should also be compared only with. However, there is the eSATA Stecher concerning better cable: However, if the dimensions of the plug are exactly and the plastic body is not worse than in other high-priced cables, so make the outer metal contacts not very positive impression. These are, unfortunately, on the plastic body something, so you have to be careful when Anschschließen that one gets also into the socket and they do not quite bends away. Ie: less suitable for frequent plugging on the eSATA page.