The Toshiba THNSNH512GCST4PAG is based on 19 nm NAND flash memory SSD. It comes with no extras (OEM), therefore - but that they must also. Various tests on the internet you certify an extraordinary performance. According to a test it is even 4% faster than the Samsung 840Pro with 512GB. As controller chip it uses a umgelabelten Marvell chip, which promises security. Not for nothing build leading manufacturers such as, among others, Crucial on this chip. For me, the hard drive in an external USB 3.0 case of Inateck (read my review). There they reached with USAP protocol read and write values in excess of 400MB / s (megabytes per second)!