As such, MLC typically has a larger bit error rate than SLC. This is because it requires more processing power to read more information and also more accuracy because the more bits of information there are to read, the smaller the margin of error. Typically, as the 'level' count increases, performance (i.e., speed and reliability) decrease. Because MLC SSD flash memory is generally less expensive than SLC, it is the preferred solid-state storage memory of manufacturers of consumer-based electronic devices. The primary advantage of MLC flash memory is its lower cost per unit of storage due to the higher data density. MLC refers to cells that can store two bits of information, as opposed to triple-level cells (TLC) and quad-level cells (QLC), which can respectively store three and four bits of information per cell. ![]() A multi-level cell (MLC) solid state drive (SSD), also called a double-level cell (DLC), is a memory cell that can store more than a single bit of information, as opposed to a single-level cell (SLC), which can store only one bit per memory cell.
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