Crucial has introduced its new generation of SSD for the domestic market. The SSD Crucial M600 is one of the greatest innovations with its memory chips manufactured at 16 nanometers with a capacity of 16 GB (128 GB) type MLC, but are capable of changing dynamically to SLC mode when the cells are empty. In such a manner that the capacity of each cell is reduced by half and allows much faster script writing with less consumption. Once the cells are filled it changes back to MLC mode to increase its capacity.
While the SLC cells are filling, the SSD transfers existing data to cells in MLC mode. This is why we will maintain SLC cells (much faster). Naturally, the more space we occupy in SSD, the more the available SLC cells will decrease and we will lose this improvement. However, in order for this to happen we would have to fill almost all the disk. Top speed is achieved when the SSD is below 50% capacity.