I purchased this adapter for Dell Vostro 3300. Indeed properly and works properly with a 1TB hard drive in storage. However I was extremely difficult to insert the hard drive. On the one hand the SATA adapter side connector is not fixed in a way that properly aligns with the disc. So I had to disassemble the adapter (part aluminum) to insert the disc and attach it to the power connector. Again it was difficult to fix the connector, I met a lot of resistance, much more than on a hard drive enclosure type or the internal port of a laptop. I feel that this connector is not of high quality.
Mixed impression of the shot. For now the adapter fulfills its role, and I hope it will not harm the hard drive or the laptop.