This one is a game changer. It truly transforms your PC into a much higher level. Being the #1 best selling SSD as of now. Samsung 850 EVO offers a sequential write speed up to 520 mb with TurboWrite technology. Not only that, There is Rapid Mode that doubles up the data processing speeds. Furthermore, This product has 4 tb. Being also the first one in the Market. This also has AES 256 bit hardware encryption and a dynamic thermal guard for a much reliable experience.