Nothing to say about the product by itself, but after installing the drive he demanded the installation of an SES driver for each connection. This driver is supposed to automatically install but this does not happen in my case (Vista 32 bit). The case is expected. You must read the user manual: Installing an SES Driver. 175Go I transferred from the internal HDD to the external HDD barracuda in 3:35 via transcend USB3 card; 13 MB / s. Not terrible. But I know what the limiting component of my equipment.