The Samsung 860 EVO 2TB M.2 is an internal SSD for your ultrabook or desktop PC. This M.2 card lets you expand your computer's storage space and gives your computer's performance a speed boost. The SSD has been developed with 64 layers of V-NAND technology. This makes the Samsung 860 EVO 250GB up to 25% more energy-efficient than its predecessor. This way, you can save energy with your desktop computer and your laptop will last longer on 1 fully-charged battery. Thanks to a write speed of 520MB/s, you can transfer large files such as HD movies and high-resolution photo collections in a few seconds. You can transfer a file of 5GB in under 10 seconds and the AES 256-bit encryption protects your data, so all your files remain unchanged.