By: +David Herron; Date: March 26, 2017
- SLC - Single Level Cell - each cell stores one bit
- MLC - Multi Level Cell - each cell stores two bits (technically it refers to any architecture with more than one bit per cell)
- TLC - Three Level Cell - each cell stores three bits
As they increase the number of bits per cell, the drive holds more data and should therefore cost less. However, it impacts speed and more importantly reliability. The TLC and MLC drives have a lower lifespan than SLC drives -- See: SSD drive lifetime expectancy explained
SLC drives are so expensive and so reliable that they're typically only used in Enterprise applications.
Bottom line is the best choice is probably an MLC drive.