The fourth largest producer of NAND memory has started producing the “densest” chips in the world. Micron continues to stack 176 memory layers, but these now use the structure of TLC, but QLC. One cell can hold four instead of three bits. While this will shorten the life of the memory and reduce its write performance, it will allow you to create larger and cheaper SSDs.
Micron used this to be the first to produce a 2TB SSD format M.2-2230, the smallest standardized format used in notebooks and other electronics. Unfortunately, the 2 TB capacity is also the ceiling for the larger 2240 and 2280 formats.
However, the restriction only applies to the SSD series it manufactures, called the Micron 2400 and marked as “value”. However, in theory, it can also list larger models, whether named after the parent company or under the Crucial or Lexar brands. Micron 2400 promises sequential read speeds of up to 4.5 GB / s and write speeds of up to 4 GB / s, the company also wants to attract low power consumption.
|512 GB||1 TB||2 TB|
|format||M.2-2230, M.2-2242, M2-2280|
|interface||PCIe 4.0 × 4, NVMe 1.4|
|sequential reading||4200 MB / s||4500 MB / s||4500 MB / s|
|sequential notation||1800 MB / s||3600 MB / s||4000 MB / s|
|random reading||400,000 IOPS||600,000 IOPS||650,000 IOPS|
|random entry||400,000 IOPS||650,000 IOPS||700,000 IOPS|
|stamina||150 TBW||300 TBW||600 TBW|
We do not yet know exactly when the new SSDs will appear on the market and how much they will cost. But Micron first wants to contact OEMs who would sell storage directly in notebooks. However, the technology developed by him will also find application outside the field of computer SSDs. Denser NANDs will also help increase memory card capacity.