Samsung 860 QVO SATA III 2.5 inch SSD 4TB is a top quality SSD that dramatically improves the performance of your current system and can also be used as a storage accessory. With 550 MB/s read and 520 MB/s write speeds, the SSD allows you to transfer data 10 times faster than an average hard drive. It also offers brilliant booting and loading times to increase your productivity. It comes with Intelligent TurboWrite that accelerates write speed as well as maintains long-term performance. It is a must have device if you want to keep your data safe and improve your machines performance by a country mile.