SanDisk Ultra II SSD Review (240GB)
Following the market trend of offering higher capacity while continuing cost reduction, SanDisk’s Ultra II is their first TLC memory equipped SSD. As we all know, 3-bit TLC NAND has some disadvantages when compared to 2-bit MLC, slower speeds and a lower program/erase cycles. To combat this, SanDisk has programs in their nCache 2.0 technology that utilizes a two-tiered caching architecture to optimize drive speed and endurance.
via SanDisk Ultra II SSD Review (240GB) – TLC Memory Goes Mainstream | The SSD Review.