The ultra-compact SATA III 6 Gb/s M.2 SSD 830S from Transcend meets the high-performance requirements and strict size constraints of small form factor devices, making it particularly suitable for ultrabooks and thin, lightweight notebooks. With high-quality flash chips, DDR3 DRAM cache, and enhanced firmware algorithms, the Transcend M.2 SSD 830S offers optimal reliability. Unlike existing planar NAND chips, 3D NAND flash is a type of flash memory where memory cells are stacked vertically in multiple layers. 3D NAND was developed to overcome the density limitations of planar 2D NAND, thus providing a higher level of performance and endurance.