3D V-NAND Technology The 850 EVO delivers class-leading performance* in sequential read (540MB/s) and write (520MB/s) speeds. Plus, gain optimized random performance in all QD for better real-world performance. Samsung's Magician software enables RAPID Mode for up to 2x faster performance* by utilizing unused PC memory (DRAM) as a high-speed cache. The newest version of Samsung Magician supports up to a 4 GB cache on a system with 16 GB of DRAM.
SLC (single-level cell) caching boosts write performance to quickly perform everyday tasks Shock-resistant and WD F.I.T. Lab certified for compatibility and reliability Ultra low power-draw so you can use your laptop PC for longer periods of time