Samsung selling server SSDs based on three-bit TLC NAND
 

In the beginning, server SSDs relied exclusively on SLC NAND with one bit per cell. MLC-based drives with two bits per cell have become more popular in recent years, though. These drives offer sufficient performance and endurance for many enterprise tasks, minus the hefty price premium associated with SLC NAND. Now, Samsung has gone one step further with a new PM853T server SSD based on TLC flash with three bits per cell.

http://techreport.com/news/26381/sam...e-bit-tlc-nand