72-Layer

SK Hynix has been in the NAND and SSD business for a long time, but we haven't had the opportunity to review a drive with SK Hynix NAND in years. SK Hynix 3D NAND has been considerably more popular in mobile applications like smartphones and memory cards, and their client OEM SSDs are widespread but not sampled for review. This year, SK Hynix decided to start competing directly in the retail SSD market by introducing the SK Hynix Gold S31 SATA SSDs. The Gold S31 showcases SK Hynix's vertical integration with the NAND, DRAM, controller and firmware all produced in-house.